Protect Forests

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Summary

We define the Protect Forests solution as the long-term protection of tree-dominated ecosystems through establishment of protected areas (PAs), managed with the primary goal of conserving nature, and land tenure for Indigenous peoples. These protections reduce forest degradation, avoiding GHG emissions and ensuring continued carbon sequestration by healthy forests. This solution addresses protection of forests on mineral soils. The Protect Peatlands and Protect Coastal Wetlands solutions address protection of forested peatlands and mangrove forests, respectively, and the Restore Forests solution addresses restoring degraded forests.

Overview

Forests store carbon in biomass and soils and serve as carbon sinks, taking up an estimated 12.8 Gt CO₂‑eq/yr  (including mangroves and forested peatlands; Pan et al., 2024). Carbon stored in forests is released into the atmosphere through deforestation and degradation, which refer to forest clearing or reductions in ecosystem integrity from human influence (DellaSala et al., 2025). Humans cleared an average of 0.4% (16.3 Mha) of global forest area annually 2001–2019 (excluding wildfire but including mangroves and forested peatlands; Hansen et al., 2013). This produced a gross flux of 7.4 Gt CO₂‑eq/yr (Harris et al., 2021), equivalent to ~14% of total global GHG emissions over that period (Dhakal et al., 2022). Different forest types store varying amounts of carbon and experience different rates of clearing; in this analysis, we individually evaluate forest protection in boreal, temperate, subtropical, and tropical regions. We included woodlands in our definition of forests because they are not differentiated in the satellite-based data used in this analysis.

We consider forests to be protected if they 1) are formally designated as PAs (UNEP-WCMC and IUCN, 2024), or 2) are mapped as Indigenous peoples’ lands in the global study by Garnett et al. (2018). The International Union for Conservation of Nature defines PAs as areas managed primarily for the long-term conservation of nature and ecosystem services. They are disaggregated into six levels of protection, ranging from strict wilderness preserves to sustainable-use areas that allow for some natural resource extraction, including logging. We included all levels of protection in this analysis, primarily because not all PAs have been classified into these categories. We rely on existing maps of Indigenous peoples’ lands but emphasize that much of their extent has not been fully mapped nor recognized for its conservation benefits (Garnett et al., 2018). Innovative and equity-driven strategies for forest protection that recognize the land rights, sovereignty, and stewardship of Indigenous peoples and local communities are critical for achieving just and effective forest protection globally (Dawson et al., 2024; Fa et al., 2020; FAO, 2024; Garnett et al., 2018; Tran et al., 2020; Zafra-Calvo et al., 2017).

Indigenous peoples’ lands and PAs reduce, but do not eliminate, forest clearing relative to unprotected areas (Baragwanath et al., 2020; Blackman & Viet 2018; Li et al., 2024; McNicol et al., 2023; Sze et al. 2022; Wolf et al., 2023; Wade et al., 2020). We rely on estimates of current PA effectiveness for this analysis but highlight that improving management to further reduce land use change within PAs is a critical component of forest protection (Jones et al., 2018; Meng et al., 2023; Vijay et al., 2018; Visconti et al., 2019; Watson et al., 2014).

Market-based strategies and other policies can complement legal protections by increasing the value of intact forests and reducing incentives for clearing (e.g., Garett et al., 2019; Golub et al., 2021; Heilmayr et al., 2020; Lambin et al., 2018; Levy et al., 2023; Macdonald et al., 2024; Marin et al., 2022; Villoria et al., 2022; West et al., 2023). The estimates in this report are based on legal protection alone because the effectiveness of market-based strategies is difficult to quantify, but strategies such as sustainable commodities programs, reducing or redirecting agricultural subsidies, and strategic infrastructure planning will be further discussed in an Appendix (coming soon). 

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Reddington, C. L., Butt, E. W., Ridley, D. A., Artaxo, P., Morgan, W. T., Coe, H., & Spracklen, D. V. (2015). Air quality and human health improvements from reductions in deforestation-related fire in Brazil. Nature Geoscience8(10), 768–771. https://doi.org/10.1038/ngeo2535

Richter, J., Goldman, E., Harris, N., Gibbs, D., Rose, M., Peyer, S., Richardson, S., & Velappan, H. (2024). Spatial Database of Planted Trees (SDPT Version 2.0) [Dataset]. https://doi.org/10.46830/writn.23.00073

Rogers, B. M., Mackey, B., Shestakova, T. A., Keith, H., Young, V., Kormos, C. F., DellaSala, D. A., Dean, J., Birdsey, R., Bush, G., Houghton, R. A., & Moomaw, W. R. (2022). Using ecosystem integrity to maximize climate mitigation and minimize risk in international forest policy. Frontiers in Forests and Global Change5. https://doi.org/10.3389/ffgc.2022.929281

Ruseva, T., Marland, E., Szymanski, C., Hoyle, J., Marland, G., & Kowalczyk, T. (2017). Additionality and permanence standards in California’s Forest Offset Protocol: A review of project and program level implications. Journal of Environmental Management198, 277–288. https://doi.org/10.1016/j.jenvman.2017.04.082

Sarira, T. V., Zeng, Y., Neugarten, R., Chaplin-Kramer, R., & Koh, L. P. (2022). Co-benefits of forest carbon projects in Southeast Asia. Nature Sustainability5(5), 393–396. https://doi.org/10.1038/s41893-022-00849-0

Seymour, F., Wolosin, M., & Gray, E. (2022, October 23). Policies underestimate forests’ full effect on the climate. World Resources Institute. https://www.wri.org/insights/how-forests-affect-climate

Smith, C., Baker, J. C. A., & Spracklen, D. V. (2023). Tropical deforestation causes large reductions in observed precipitation. Nature615(7951), 270–275. https://doi.org/10.1038/s41586-022-05690-1

Soto-Navarro, C., Ravilious, C., Arnell, A., de Lamo, X., Harfoot, M., Hill, S. L. L., Wearn, O. R., Santoro, M., Bouvet, A., Mermoz, S., Le Toan, T., Xia, J., Liu, S., Yuan, W., Spawn, S. A., Gibbs, H. K., Ferrier, S., Harwood, T., Alkemade, R., … Kapos, V. (2020). Mapping co-benefits for carbon storage and biodiversity to inform conservation policy and action. Philosophical Transactions of the Royal Society B: Biological Sciences375(1794), 20190128. https://doi.org/10.1098/rstb.2019.0128

Sunderlin, W. D., Angelsen, A., Belcher, B., Burgers, P., Nasi, R., Santoso, L., & Wunder, S. (2005). Livelihoods, forests, and conservation in developing countries: An Overview. World Development33(9), 1383–1402. https://doi.org/10.1016/j.worlddev.2004.10.004

Sweeney, B. W., Bott, T. L., Jackson, J. K., Kaplan, L. A., Newbold, J. D., Standley, L. J., Hession, W. C., & Horwitz, R. J. (2004). Riparian deforestation, stream narrowing, and loss of stream ecosystem services. Proceedings of the National Academy of Sciences101(39), 14132–14137. https://doi.org/10.1073/pnas.0405895101

Sze, J. S., Carrasco, L. R., Childs, D., & Edwards, D. P. (2022). Reduced deforestation and degradation in Indigenous Lands pan-tropically. Nature Sustainability5(2), 123–130. https://doi.org/10.1038/s41893-021-00815-2

Tauli-Corpuz, V., Alcorn, J., Molnar, A., Healy, C., & Barrow, E. (2020). Cornered by PAs: Adopting rights-based approaches to enable cost-effective conservation and climate action. World Development130, 104923. https://doi.org/10.1016/j.worlddev.2020.104923

Tran, T. C., Ban, N. C., & Bhattacharyya, J. (2020). A review of successes, challenges, and lessons from Indigenous protected and conserved areas. Biological Conservation, 241, 108271. https://doi.org/10.1016/j.biocon.2019.108271

UNEP-WCMC and IUCN (2024), Protected Planet: The World Database on Protected Areas (WDPA) and World Database on Other Effective Area-based Conservation Measures (WD-OECM) [Online], Accessed November 2024, Cambridge, UK: UNEP-WCMC and IUCN. Available at: www.protectedplanet.net.

Vijay, V., Fisher, J. R. B., & Armsworth, P. R. (2022). Co-benefits for terrestrial biodiversity and ecosystem services available from contrasting land protection policies in the contiguous United States. Conservation Letters, 15(5), e12907. https://doi.org/10.1111/conl.12907

Villoria, N., Garrett, R., Gollnow, F., & Carlson, K. (2022). Leakage does not fully offset soy supply-chain efforts to reduce deforestation in Brazil. Nature Communications, 13(1), 5476. https://doi.org/10.1038/s41467-022-33213-z

Visconti, P., Butchart, S. H. M., Brooks, T. M., Langhammer, P. F., Marnewick, D., Vergara, S., Yanosky, A., & Watson, J. E. M. (2019). Protected area targets post-2020. Science, 364(6437), 239–241. https://doi.org/10.1126/science.aav6886

Wade, C. M., Austin, K. G., Cajka, J., Lapidus, D., Everett, K. H., Galperin, D., Maynard, R., & Sobel, A. (2020). What Is Threatening Forests in Protected Areas? A Global Assessment of Deforestation in Protected Areas, 2001–2018. Forests11(5), Article 5. https://doi.org/10.3390/f11050539

Waldron, A., Adams, V., Allan, J., Arnell, A., Asner, G., Atkinson, S., Baccini, A., Baillie, J., Balmford, A., & Austin Beau, J. (2020). Protecting 30% of the planet for nature: Costs, benefits and economic implications. https://pure.iiasa.ac.at/id/eprint/16560/1/Waldron_Report_FINAL_sml.pdf

Walton, Z. L., Poudyal, N. C., Hepinstall-Cymerman, J., Johnson Gaither, C., & Boley, B. B. (2016). Exploring the role of forest resources in reducing community vulnerability to the heat effects of climate change. Forest Policy and Economics71, 94–102. https://doi.org/10.1016/j.forpol.2015.09.001

Watson, J. E. M., Dudley, N., Segan, D. B., & Hockings, M. (2014). The performance and potential of protected areas. Nature, 515(7525), 67–73. https://doi.org/10.1038/nature13947

West, T. A. P., Wunder, S., Sills, E. O., Börner, J., Rifai, S. W., Neidermeier, A. N., Frey, G. P., & Kontoleon, A. (2023). Action needed to make carbon offsets from forest conservation work for climate change mitigation. Science, 381(6660), 873–877. https://doi.org/10.1126/science.ade3535

Wolf, C., Levi, T., Ripple, W. J., Zárrate-Charry, D. A., & Betts, M. G. (2021). A forest loss report card for the world’s protected areas. Nature Ecology & Evolution, 5(4), 520–529. https://doi.org/10.1038/s41559-021-01389-0

Zafra-Calvo, N., Pascual, U., Brockington, D., Coolsaet, B., Cortes-Vazquez, J. A., Gross-Camp, N., Palomo, I., & Burgess, N. D. (2017). Towards an indicator system to assess equitable management in protected areas. Biological Conservation211, 134–141. https://doi.org/10.1016/j.biocon.2017.05.014

Credits

Lead Fellow

  • Avery Driscoll, Ph.D.

Contributors

  • Ruthie Burrows, Ph.D.

  • James Gerber, Ph.D.

  • Yusuf Jameel, Ph.D. 

  • Daniel Jasper

  • Alex Sweeney

Internal Reviewers

  • Hannah Henkin

  • Ted Otte

  • Tina Swanson, Ph.D.

  • Paul West, Ph.D.

Effectiveness

We estimated that one hectare of forest protection provides total carbon benefits of 0.299–2.204 t CO₂‑eq/yr depending on the biome (Table 1; Appendix). This effectiveness estimate includes avoided emissions and preserved sequestration capacity attributable to the reduction in forest loss conferred by protection (Equation 1). First, we calculated the difference between the rate of human-caused forest loss outside of PAs (Forest lossbaseline) and the rate inside of PAs (Forest lossprotected). We then multiplied the annual rate of avoided forest loss by the sum of the carbon stored in one hectare of forest (Carbonstock) and the amount of carbon that one hectare of intact forest takes up over a 30-yr timeframe (Carbonsequestration). 

Equation 1.

Effectiveness= (Forest lossbaseline- Forest lossprotected)* (Carbonstock + Carbonsequestration

Each of these factors varies across biomes. Based on our definition, for instance, the effectiveness of forest protection in boreal forests is lower than that in tropical and subtropical forests primarily because the former face lower rates of human-caused forest loss (though greater wildfire impacts). Importantly, the effectiveness of forest protection as defined here reflects only a small percentage of the carbon stored (394 t CO₂‑eq ) and absorbed (4.25 t CO₂‑eq/yr ) per hectare of forest (Harris et al., 2021). This is because humans clear ~0.4% of forest area annually, and forest protection is estimated to reduce human-caused forest loss by an average of 40.5% (Curtis et al., 2018; Wolf et al., 2023). 

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Table 1. Effectiveness at avoiding emissions and sequestering carbon (t CO₂‑eq /ha/yr, 100-yr basis), with carbon sequestration calculated over a 30-yr timeframe. Differences in values between biomes are driven by variation in forest carbon stocks and sequestration rates, baseline rates of forest loss, and effectiveness of PAs at reducing forest loss. See the Appendix for source data and calculation details. Emissions and sequestration values may not sum to total effectiveness due to rounding.

Unit: t CO₂‑eq/ha/yr

Avoided emissions 0.207
Sequestration 0.091
Total effectiveness 0.299

Unit: t CO₂‑eq/ha/yr

Avoided emissions 0.832
Sequestration 0.572
Total effectiveness 1.403

Unit: t CO₂‑eq/ha/yr

Avoided emissions 1.860
Sequestration 0.344
Total effectiveness 2.204

Unit: t CO₂‑eq/ha/yr

Avoided emissions 1.190
Sequestration 0.300
Total effectiveness 1.489
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Cost

We estimated that forest protection costs approximately US$2/t CO₂‑eq (Table 2). Data related to the costs of forest protection are limited, and these estimates are uncertain. The costs of forest protection include up-front costs of land acquisition and ongoing costs of management and enforcement. The market price of land reflects the opportunity cost of not using the land for other purposes (e.g., agriculture or logging). Protecting forests also generates revenue, notably through increased tourism. Costs and revenues vary across regions, depending on the costs of land and enforcement and potential for tourism. 

The cost of land acquisition for ecosystem protection was estimated by Dienerstein et al. (2024), who found a median cost of US$988/ha (range: US$59–6,616/ha), which we amortized over 30 years. Costs of PA maintenance were estimated at US$9–17/ha/yr (Bruner et al., 2004; Waldron et al., 2020). These estimates reflect the costs of effective enforcement and management, but many existing PAs do not have adequate funds for effective enforcement (Adams et al., 2019; Barnes et al., 2018; Burner et al., 2004). Tourism revenues directly attributable to forest protection were estimated to be US$43/ha/yr (Waldron et al., 2020), not including downstream revenues from industries that benefit from increased tourism. Inclusion of a tourism multiplier would substantially increase the estimated economic benefits of forest protection.

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Table 2. Cost per unit of climate impact.

Unit: 2023 US$/t CO₂‑eq, 100-yr basis

median 2
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Methods and Supporting Data

Crezee, B. et al. Mapping peat thickness and carbon stocks of the central Congo Basin using field data. Nature Geoscience 15: 639-644 (2022). https://www.nature.com/articles/s41561-022-00966-7. Data downloaded from https://congopeat.net/maps/, using classes 4 and 5 only (peat classes). 

Curtis, P. G., Slay, C. M., Harris, N. L., Tyukavina, A., & Hansen, M. C. (2018). Classifying drivers of global forest loss. Science, 361(6407), 1108–1111. https://doi.org/10.1126/science.aau3445

ESA CCI (2019). Copernicus Climate Change Service, Climate Data Store: Land cover classification gridded maps from 1992 to present derived from satellite observation. Copernicus Climate Change Service (C3S) Climate Data Store (CDS). Accessed November 2024. doi: 10.24381/cds.006f2c9a

Garnett, S. T., Burgess, N. D., Fa, J. E., Fernández-Llamazares, Á., Molnár, Z., Robinson, C. J., Watson, J. E. M., Zander, K. K., Austin, B., Brondizio, E. S., Collier, N. F., Duncan, T., Ellis, E., Geyle, H., Jackson, M. V., Jonas, H., Malmer, P., McGowan, B., Sivongxay, A., & Leiper, I. (2018). A spatial overview of the global importance of Indigenous lands for conservation. Nature Sustainability1(7), 369–374. https://doi.org/10.1038/s41893-018-0100-6

Giri C, Ochieng E, Tieszen LL, Zhu Z, Singh A, Loveland T, Masek J, Duke N (2011). Status and distribution of mangrove forests of the world using earth observation satellite data (version 1.3, updated by UNEP-WCMC). Global Ecology and Biogeography 20: 154-159. doi: 10.1111/j.1466-8238.2010.00584.x . Data URL: http://data.unep-wcmc.org/datasets/4

Gumbricht, T. et al. An expert system model for mapping tropical wetlands and peatlands reveals South America as the largest contributor. Global Change Biology 23, 3581–3599 (2017). https://onlinelibrary.wiley.com/doi/full/10.1111/gcb.13689 

Hansen, M. C., Potapov, P. V., Moore, R., Hancher, M., Turubanova, S. A., Tyukavina, A., Thau, D., Stehman, S. V., Goetz, S. J., Loveland, T. R., Kommareddy, A., Egorov, A., Chini, L., Justice, C. O., & Townshend, J. R. G. (2013). High-Resolution Global Maps of 21st-Century Forest Cover Change. Science342(6160), 850–853. https://doi.org/10.1126/science.1244693. Data available on-line from: http://earthenginepartners.appspot.com/science-2013-global-forest. Accessed through Global Forest Watch on 01/12/2024. www.globalforestwatch.org

Harris, N. L., Gibbs, D. A., Baccini, A., Birdsey, R. A., de Bruin, S., Farina, M., Fatoyinbo, L., Hansen, M. C., Herold, M., Houghton, R. A., Potapov, P. V., Suarez, D. R., Roman-Cuesta, R. M., Saatchi, S. S., Slay, C. M., Turubanova, S. A., & Tyukavina, A. (2021). Global maps of twenty-first century forest carbon fluxes. Nature Climate Change11(3), 234–240. https://doi.org/10.1038/s41558-020-00976-6

Hastie, A. et al. Risks to carbon storage from land-use change revealed by peat thickness maps of Peru. Nature Geoscience 15: 369-374 (2022). https://www.nature.com/articles/s41561-022-00923-4

Miettinen, J., Shi, C. & Liew, S. C. Land cover distribution in the peatlands of Peninsular Malaysia, Sumatra and Borneo in 2015 with changes since 1990. Global Ecological Conservation. 6, 67– 78 (2016). https://www.sciencedirect.com/science/article/pii/S2351989415300470

UNEP-WCMC and IUCN (2024), Protected Planet: The World Database on Protected Areas (WDPA) and World Database on Other Effective Area-based Conservation Measures (WD-OECM) [Online], Accessed November 2024, Cambridge, UK: UNEP-WCMC and IUCN. Available at: www.protectedplanet.net.

Wolf, C., Levi, T., Ripple, W. J., Zárrate-Charry, D. A., & Betts, M. G. (2021). A forest loss report card for the world’s protected areas. Nature Ecology & Evolution, 5(4), 520–529. https://doi.org/10.1038/s41559-021-01389-0

Xu et al. PEATMAP: Refining estimates of global peatland distribution based on a meta-analysis. CATENA 160: 134-140 (2018). https://www.sciencedirect.com/science/article/pii/S0341816217303004 

Learning Curve

learning curve is defined here as falling costs with increased adoption. The costs of forest protection do not fall with increasing adoption, so there is no learning curve for this solution.

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Speed of Action

Speed of action refers to how quickly a climate solution physically affects the atmosphere after it is deployed. This is different from speed of deployment, which is the pace at which solutions are adopted.

At Project Drawdown, we define the speed of action for each climate solution as gradualemergency brake, or delayed.

Protect Forests is an EMERGENCY BRAKE climate solution. It has the potential to deliver a more rapid impact than nominal and delayed solutions. Because emergency brake solutions can deliver their climate benefits quickly, they can help accelerate our efforts to address dangerous levels of climate change. For this reason, they are a high priority.

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Caveats

Additionality, or the degree to which emissions reductions are above and beyond a baseline, is a key caveat for emissions avoided through forest protection (e.g., Fuller et al., 2020; Ruseva et al., 2017). Emissions avoided via forest protection are only considered additional if that forest would have been cleared or degraded without protection (Delacote et al., 2022; Delacote et al., 2024; Gallemore et al., 2020). In this analysis, additionality is addressed by using baseline rates of forest loss outside of PAs in the effectiveness calculation. Additionality is particularly important when forest protection is used to generate carbon offsets. However, the likelihood of forest removal in the absence of protection is often difficult to determine at the local level.

Permanence, or the durability of stored carbon over long timescales, is another important consideration not directly addressed in this solution. Carbon stored in forests can be compromised by natural factors, like drought, heat, flooding, wildfire, pests, and diseases, which are further exacerbated by climate change (Anderegg et al., 2020; Dye et al., 2024). Forest losses via wildfire in particular can create very large pulses of emissions (e.g., Kolden et al. 2024; Phillips et al. 2022) that negate accumulated carbon benefits of forest protection. Reversal of legal protections, illegal forest clearing, biodiversity loss, edge effects from roads, and disturbance from permitted uses can also cause forest losses directly or reduce ecosystem integrity, further increasing vulnerability to other stressors (McCallister et al., 2022).

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Current Adoption

We estimated that approximately 1,673 Mha of forests are currently recognized as PAs or Indigenous peoples’ lands (Table 3; Garnett et al., 2018; UNEP-WCMC and IUCN, 2024). Using two different maps of global forests that differ in their methodologies and definitions (ESA CCI, 2019; Hansen et al., 2013), we found an upper-end estimate of 1,943 Mha protected and a lower-end estimate of 1,404 Mha protected. These two maps classify forests using different thresholds for canopy cover and vegetation height, different satellite data, and different classification algorithms (see the Appendix for additional details). 

Based on our calculations, tropical forests make up the majority of forested PAs, with approximately 936 Mha under protection, followed by boreal forests (467 Mha), temperate forests (159 Mha), and subtropical forests (112 Mha). We estimate that 49% of all forests have some legal protection, though only 7% of forests are under strict protection (IUCN class I or II), with the remaining area protected under other IUCN levels, as OECMs, or as Indigenous peoples’ lands.

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Table 3. Current (circa 2023) forest and woodland area under legal protection by biome (Mha). The low and high values are calculated using two different maps of global forest cover that differ in methodology for defining a forest (ESA CCI, 2019; Hansen et al., 2013). Biome-level values may not sum to global totals due to rounding.

Unit: Mha

low 313
mean 467
high 621

Unit: Mha

low 135
mean 159
high 183

Unit: Mha

low 85
mean 112
high 138

Unit: Mha

low 872
mean 936
high 1,000

Unit: Mha

low 1,404
mean 1,673
high 1,943
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Adoption Trend

We calculated the rate of PA expansion based on the year the PA was established. We do not have data on the expansion rate of Indigenous peoples’ lands, so the calculated adoption trend reflects only PAs. An average of 19 Mha of additional forests were protected each year between 2000 and 2020 (Table 4; Figure 1), representing a roughly 2% increase in PAs per year (excluding Indigenous peoples’ lands that are not located in PAs). There were large year-to-year differences in how much new forest area was protected over this period, ranging from only 6.4 Mha in 2020 to over 38 Mha in both 2000 and 2006. Generally, the rate at which forest protection is increasing has been decreasing, with an average increase of 27 Mha/yr between 2000–2010 declining to 11 Mha/yr between 2010–2020. Recent rates of forest protection (2010–2020) are highest in the tropics (5.6 Mha/yr), followed by temperate regions (2.4 Mha/yr) and the boreal (2.0 Mha/yr), and lowest in the subtropics (0.7 Mha/yr).

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Figure 1. Trend in forest protection by climate zone. These values reflect only the area located within PAs; Indigenous peoples’ lands, which were not included in the calculation of the adoption trend, are excluded.

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Table 4. 2000–2020 adoption trend.

Unit: Mha protected/yr

25th percentile 1.3
mean 2.8
median (50th percentile) 2.0
75th percentile 3.4

Unit: Mha protected/yr

25th percentile 1.9
mean 2.8
median (50th percentile) 2.5
75th percentile 3.1

Unit: Mha protected/yr

25th percentile 0.5
mean 1.0
median (50th percentile) 0.7
75th percentile 1.1

Unit: Mha protected/yr

25th percentile 5.4
mean 12.5
median (50th percentile) 7.7
75th percentile 17.8

Unit: Mha protected/yr

25th percentile 9
mean 19
median (50th percentile) 13
75th percentile 25
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Adoption Ceiling

We estimated an adoption ceiling of 3,370 Mha of forests globally (Table 5), defined as all existing forest areas, excluding peatlands and mangroves. Of the calculated adoption ceiling, 469 Mha of boreal forests, 282 Mha of temperate forests, 211 Mha of subtropical forests, and 734 Mha of tropical forests are currently unprotected. The high and low values represent estimates of currently forested areas from two different maps of forest cover that use different methodologies and definitions (ESA CCI, 2019; Hansen et al., 2013). While it is not socially, politically, or economically realistic that all existing forests could be protected, these values represent the technical upper limit to adoption of this solution. Additionally, some PAs allow for ongoing sustainable use of resources, enabling some demand for wood products to be met via sustainable use of trees in PAs.

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Table 5. Adoption ceiling.

Unit: Mha protected

low 686
mean 936
high 1,186

Unit: Mha protected

low 385
mean 441
high 498

Unit: Mha protected

low 260
mean 323
high 385

Unit: Mha protected

low 1,557
mean 1,669
high 1,782

Unit: Mha protected

low 2,889
mean 3,370
high 3,851
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Achievable Adoption

We defined the lower end of the achievable range for forest protection as all high integrity forests in addition to forests in existing PAs and Indigenous peoples’ lands, totaling 2,297 Mha. We estimated that there are 624 Mha of unprotected high integrity forests, based on maps of forest integrity developed by Grantham et al. (2020). High integrity forests have experienced little disturbance from human pressures (i.e., logging, agriculture, and buildings), are located further away from areas of human disturbance, and are well-connected to other forests. High integrity forests are a top priority for protection as they have particularly high value with respect to biodiversity and ecosystem service provisioning. These forests are also not currently being used to meet human demand for land or forest-derived products, and thus their protection may be more feasible. 

To estimate the upper end of the achievable range, we excluded the global areas of planted trees and tree crops from the adoption ceiling (Richter et al., 2024), comprising approximately 335 Mha globally (Table 6). Planted trees include tree stands established for crops such as oil palm, products such as timber and fiber production, and those established as windbreaks or for ecosystem services such as erosion control. These stands are often actively managed and are unlikely to be protected.

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Table 6. Range of achievable adoption levels. 

Unit: Mha protected

Current Adoption 467
Achievable – Low 847
Achievable – High 861
Adoption ceiling 936

Unit: Mha protected

Current Adoption 159
Achievable – Low 204
Achievable – High 378
Adoption ceiling 441

Unit: Mha protected

Current Adoption 112
Achievable – Low 126
Achievable – High 219
Adoption ceiling 323

Unit: Mha protected

Current Adoption 936
Achievable – Low 1,120
Achievable – High 1,577
Adoption ceiling 1,669

Unit: Mha protected

Current Adoption 1,673
Achievable – Low 2,297
Achievable – High 3,035
Adoption ceiling 3,370
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We estimated that forest protection currently avoids approximately 2.00 Gt CO₂‑eq/yr, with potential impacts of 2.49 Gt CO₂‑eq/yr at the low-achievable scenario, 3.62 Gt CO₂‑eq/yr  at the high-achievable scenario, and 4.10 Gt CO₂‑eq/yr at the adoption ceiling (Table 7). Although not directly comparable due to the inclusion of different land covers, these values are aligned with Griscom et al. (2017) estimates that forest protection could avoid 3.6 Gt CO₂‑eq/yr and the IPCC estimate that protection of all ecosystems could avoid 6.2 Gt CO₂‑eq/yr (Nabuurs et al., 2022).

Note that the four adoption scenarios vary only with respect to the area under protection. Increases in either the rate of forest loss that would have occurred if the area had not been protected or in the effectiveness of PAs at avoiding forest loss would substantially increase the climate impacts of forest protection. For instance, a hypothetical 50% increase in the rate of forest loss outside of PAs would increase the carbon impacts of the current adoption, low achievable, high achievable, and adoption ceiling scenarios to 3.0, 3.7, 5.4, and 6.1 Gt CO₂‑eq/yr, respectively. Similarly, if legal forest protection reduced forest loss twice as much as it currently does, the climate impacts of the four scenarios would increase to 3.9, 4.8, 7.0, and 7.8 Gt CO₂‑eq/yr, respectively.

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Table 7. Climate impact at different levels of adoption.

Unit: Gt CO₂‑eq/yr, 100-yr basis

Boreal 0.14
Achievable – Low 0.25
Achievable – High 0.26
Adoption ceiling 0.28

Unit: Gt CO₂‑eq/yr, 100-yr basis

Current Adoption 0.22
Achievable – Low 0.29
Achievable – High 0.53
Adoption ceiling 0.62

Unit: Gt CO₂‑eq/yr, 100-yr basis

Current Adoption 0.25
Achievable – Low 0.28
Achievable – High 0.48
Adoption ceiling 0.71

Unit: Gt CO₂‑eq/yr, 100-yr basis

Current Adoption 1.39
Achievable – Low 1.67
Achievable – High 2.35
Adoption ceiling 2.49

Unit: Gt CO₂‑eq/yr, 100-yr basis

Current Adoption 2.00
Achievable – Low 2.49
Achievable – High 3.62
Adoption ceiling 4.10
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Additional Benefits

Water Quality

Forests act as a natural water filter and can maintain and improve water quality (Melo et al., 2021). Forests can also retain nutrients from polluting the larger watershed (Sweeney et al., 2004). For example, forests can uptake excess nutrients like nitrogen, reducing their flow into surrounding water (Sarira et al., 2022). These excessive nutrients can cause eutrophication and algal blooms that negatively impact water quality and aquatic life. 

Biodiversity

Forests are home to a wide range of species and habitats and are essential for safeguarding biodiversity. Forests have high above- and belowground carbon density, high tree species richness, and often provide habitat to threatened and endangered species (Buotte et al., 2020). PAs can aid in avoiding extinctions by protecting rare and threatened species (Dinerstein et al. 2024). In Southeast Asia, protecting 58% of threatened forests could safeguard about half of the key biodiversity areas in the region (Sarira et al., 2022). 

Extreme Weather Events

Protected forests are more biodiverse and therefore more resilient and adaptable, providing higher-quality ecosystem services to surrounding communities (Gray et al., 2016). Protected forests can also buffer surrounding areas from the effects of extreme weather events. By increasing plant species richness, forest preservation can contribute to drought and fire tolerance (Buotte et al., 2020). Forests help regulate local climate by reducing temperature extremes (Lawrence et al., 2022). Studies have shown that the extent of forest coverage helps to alleviate vulnerability associated with heat effects (Walton et al., 2016). Tropical deforestation threatens human well-being by removing critical local cooling effects provided by tropical forests, exacerbating extreme heat conditions in already vulnerable regions (Seymour et al., 2022).

Food Security

Protecting forests in predominantly natural areas can improve food security by supporting crop pollination of nearby agriculture. Sarira et al. (2022) found that protecting 58% of threatened forests in Southeast Asia could support the dietary needs of about 305,000–342,000 people annually. Forests also provide a key source of income and livelihoods for subsistence households and individuals (de Souza et al., 2016; Herrera et al., 2017; Naidoo et al., 2019). By maintaining this source of income through forest protection, households can earn sufficient income to ensure food security. 

Health

Protected forests can benefit the health and well-being of surrounding communities through impacts on the environment and local economies. Herrera et al. (2017) found that in rural areas of low- and middle-income countries, household members living downstream of higher tree cover had a lower probability of diarrheal disease. Proximity to PAs can benefit local tourism, which may provide more economic resources to surrounding households. Naidoo et al. (2019) found that households near PAs in low- and middle-income countries were more likely to have higher levels of wealth and were less likely to have children who were stunted. Reducing deforestation can improve health by lowering vector-borne diseases, mitigating extreme weather impacts, and improving air quality (Reddington et al., 2015). 

Equality

Indigenous peoples have a long history of caring for and shaping landscapes that are rich with biodiversity (Fletcher et al., 2021). Indigenous communities provide vital ecological functions for preserving biodiversity, like seed dispersal and predation (Bliege Bird & Nimmo, 2018). Indigenous peoples also have spiritual and cultural ties to their lands (Garnett et al., 2018). Establishing protected areas must prioritize the return of landscapes to Indigenous peoples so traditional owners can feel the benefits of biodiversity. However, the burden of conservation should not be placed on Indigenous communities without legal recognition or support (Fa et al., 2020). In fact, land grabs and encroachments on Indigenous lands have led to greater deforestation pressure (Sze et al., 2022). Efforts to protect these lands must include legal recognition of Indigenous ownership to support a just and sustainable conservation process (Fletcher et al., 2021).

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Risks

Ecosystem protection initiatives that are not led by or undertaken in close collaboration with local communities can compromise community sovereignty and create injustice and inequity (Baragwanath et al., 2020; Blackman & Viet 2018; Dawson et al., 2024; Fa et al., 2020; FAO, 2024; Garnett et al. 2018; Sze et al. 2022; Tauli-Corpuz et al., 2020). Forest protection has the potential to be a win-win for climate and communities, but only if PAs are established with respect to livelihoods and other socio-ecological impacts, ensuring equity in procedures, recognition, and the distribution of benefits (Zafra-Calvo et al., 2017).

Leakage is a key risk of relying on forest protection as a climate solution. Leakage occurs when deforestation-related activities move outside of PA boundaries, resulting in the relocation of, rather than a reduction in, emissions from forest loss. If forest protection efforts are not coupled with policies to reduce incentives for forest clearing, leakage will likely offset some of the emissions avoided through forest protection. Additional research is needed to comprehensively quantify the magnitude of leakage effects, though two regional-scale studies found only small negative effects (Fuller et al., 2020; Herrera et al., 2019).

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Interactions with Other Solutions

Reinforcing

Other intact and degraded ecosystems often occur within areas of forest protection. Therefore, forest protection can facilitate natural restoration of these other degraded ecosystems, and increase the health of adjacent ecosystems.

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Reducing the demand for agricultural land will reduce barriers to forest protection.

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Competing

Forest protection will decrease the availability and increase the prices of wood feedstocks for other applications.

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Dashboard

Solution Basics

1 hectare of forest protected

t CO₂-eq/unit/yr
0.3
units
Current 4.67×10⁸8.47×10⁸8.61×10⁸
Achievable (Low to High)

Climate Impact

Gt CO₂-eq/yr
Current 0.14 0.250.26
US$ per t CO₂-eq
2
Emergency Brake

CO₂

Solution Basics

1 hectare of forest protected

t CO₂-eq/unit/yr
1.4
units
Current 1.59×10⁸2.04×10⁸3.77×10⁸
Achievable (Low to High)

Climate Impact

Gt CO₂-eq/yr
Current 0.22 0.290.53
US$ per t CO₂-eq
2
Emergency Brake

CO₂

Solution Basics

1 hectare of forest protected

t CO₂-eq/unit/yr
2.2
units
Current 1.12×10⁸1.26×10⁸2.19×10⁸
Achievable (Low to High)

Climate Impact

Gt CO₂-eq/yr
Current 0.25 0.280.48
US$ per t CO₂-eq
2
Emergency Brake

CO₂

Solution Basics

1 hectare of forest protected

t CO₂-eq/unit/yr
1.49
units
Current 9.36×10⁸1.12×10⁹1.58×10⁹
Achievable (Low to High)

Climate Impact

Gt CO₂-eq/yr
Current 1.39 1.672.35
US$ per t CO₂-eq
2
Emergency Brake

CO₂

% tree cover
0100

Tree cover, 2000 (excluding mangroves and peatlands)

We exclude mangroves and peatlands because they are addressed in other solutions.

Global Forest Watch (2023). Global peatlands [Data set]. Retrieved December 6, 2024 from https://data.globalforestwatch.org/datasets/gfw::global-peatlands/about

Hansen, M.C., Potapov, P.V., Moore, R., Hancher, M., Turubanova, S.A., Tyukavina, A., Thau, D., Stehman, S.V., Goetz, S.J., Loveland, T.R., Kommareddy, A., Egorov, A., Chini, L., Justice, C.O., and Townshend, J.R.G. (2013). High-resolution global maps of 21st-century forest cover change [Data set]. Science 342 (15 November): 850-53. https://glad.earthengine.app/view/global-forest-change

UNEP-WCMC (2025). Ocean+ habitats (version 1.3) [Data set]. Retrieved November 2024 from habitats.oceanplus.org

% tree cover
0100

Tree cover, 2000 (excluding mangroves and peatlands)

We exclude mangroves and peatlands because they are addressed in other solutions.

Global Forest Watch (2023). Global peatlands [Data set]. Retrieved December 6, 2024 from https://data.globalforestwatch.org/datasets/gfw::global-peatlands/about

Hansen, M.C., Potapov, P.V., Moore, R., Hancher, M., Turubanova, S.A., Tyukavina, A., Thau, D., Stehman, S.V., Goetz, S.J., Loveland, T.R., Kommareddy, A., Egorov, A., Chini, L., Justice, C.O., and Townshend, J.R.G. (2013). High-resolution global maps of 21st-century forest cover change [Data set]. Science 342 (15 November): 850-53. https://glad.earthengine.app/view/global-forest-change

UNEP-WCMC (2025). Ocean+ habitats (version 1.3) [Data set]. Retrieved November 2024 from habitats.oceanplus.org

Geographic Guidance Introduction

The adoption, potential adoption, and effectiveness of forest protection are highly geographically variable. While forest protection can help avoid emissions anywhere that forests occur, areas with high rates of forest loss from human drivers and particularly carbon-rich forests have the greatest potential for avoiding emissions via forest protection. The tropics and subtropics are high-priority areas for forest protection as they contain 55% of currently unprotected forest area, forest loss due to agricultural expansion is particularly concentrated in these regions (Curtis et al., 2018; West et al., 2014; Gibbs et al., 2010), and tend to have larger biomass carbon stocks than boreal forests (Harris et al., 2021). 

Developed countries also have significant potential to protect remaining old and long unlogged forests and foster recovery in secondary natural forests. The top 10 forested countries include Canada, the USA, Russia and even Australia, with the latter moving towards ending commodity production in its natural forests and increasing formal protection. Restoration of degraded forests is addressed in the “Forest Restoration” solution, but including regenerating forests in well designed protected areas is well within the capacity of every developed country.

Buffering and reconnecting existing high integrity forests is a low risk climate solution that increases current and future forest ecosystem resilience and adaptive capacity (Brennan et al., 2022; Brink et al., 2017; Grantham et al., 2020; Rogers et al., 2022). Forests with high ecological integrity provide outsized benefits for carbon storage and biodiversity and have greater resilience, making them top priorities for protection (Grantham et al., 2020; Rogers et al., 2022). Within a given forest, large-diameter trees similarly provide outsized carbon storage and biodiversity benefits, comprising only 1% of trees globally but storing 50% of the above ground forest carbon (Lutz et al., 2018). Additionally, forests that improve protected area connectivity (Brennan et al., 2022; Brink et al., 2017), areas at high risk of loss (particularly to expansion of commodity agriculture; Curtis et al., 2018; Hansen et al., 2013), and areas with particularly large or specialized benefits for biodiversity, ecosystem services, and human well-being (Dinerstein et al., 2024; Sarira et al., 2022; Soto-Navarro et al., 2020) may be key targets for forest protection.

Action Word
Protect
Solution Title
Forests
Classification
Highly Recommended
Lawmakers and Policymakers
  • Set achievable targets and pledges for PA designation and set clear effectiveness goals for PAs, emphasizing the effectiveness of current PAs before seeking to expand designations.
  • Use a variety of indicators to measure effectiveness, such as estimated avoided deforestation.
  • Ensure public procurement utilizes deforestation-free products and supply chains.
  • Grant Indigenous communities full property rights and autonomy and support them in monitoring, managing, and enforcing PAs.
  • Ensure PAs don’t displace, violate rights, or reduce access to vital resources for local and Indigenous communities.
  • Invest in PA infrastructure, monitoring, management, and enforcement mechanisms.
  • Utilize real-time monitoring and satellite data such as the “Real-Time System for Detection of Deforestation” (DETER).
  • Join, support, or create certification schemes like the Forest Stewardship Council for sustainable logging practices.
  • Conduct proactive land-use planning to avoid roads and other development projects that may interfere with PAs or incentivize deforestation.
  • Create processes for legal grievances, dispute resolution, and restitution.
  • Remove harmful agricultural and logging subsidies.
  • Prioritize reducing food loss and waste.
  • Create education programs that educate the public on PA regulations, the benefits of the regulations, and how to use forest resources sustainably.
Practitioners
  • Set achievable targets and pledges for PA designation and set clear effectiveness goals for PAs, emphasizing the effectiveness of current PAs before seeking to expand designations
  • Use a variety of indicators to measure effectiveness, such as estimated avoided deforestation.
  • Ensure PAs don’t displace, violate rights, or reduce access to vital resources for local and Indigenous communities.
  • Utilize real-time monitoring and satellite data such as the “Real-Time System for Detection of Deforestation” (DETER).
  • Create sustainable use regulations for PA areas that provide resources to the local community.
  • Conduct proactive land-use planning to avoid infrastructure or development projects that may interfere with PAs or incentivize deforestation.
  • Grant Indigenous communities full property rights and autonomy and support them in monitoring, managing, and enforcing PAs.
  • Join, support, or create certification schemes like the Forest Stewardship Council for sustainable logging practices.
  • Create processes for legal grievances, dispute resolution, and restitution.
  • Create education programs that educate the public on PA regulations, the benefits of the regulations, and how to use forest resources sustainably.
Business Leaders
  • Create deforestation-free supply chains, utilizing data, information, and the latest technology to inform product sourcing.
  • Integrate deforestation-free business and investment policies and practices in Net-Zero strategies.
  • Only purchase carbon credits from high-integrity, verifiable carbon markets and do not use them as replacements for reducing emissions.
  • Help shift the public narrative around carbon markets as integrity increases to boost education, dialogue, and awareness.
  • Develop financial instruments to invest in PA jurisdictions, focusing on supporting Indigenous communities.
  • Join or create public-private partnerships, alliances, or coalitions of stakeholders and rightsholders to support PAs and advance deforestation-free markets.
  • Join, support, or create certification schemes like the Forest Stewardship Council for sustainable logging practices.
  • Conduct proactive land-use planning to avoid infrastructure or development projects that may interfere with PAs or incentivize deforestation.
  • Amplify the voices of local communities and civil society to promote robust media coverage.
  • Invest in and support Indigenous and local communities' capacity for public relations and communications.
  • Support education programs that educate the public on PA regulations, the benefits of the regulations, and how to use forest resources sustainably.
  • Leverage political influence to advocate for stronger PA policies at national and international levels, especially policies that reduce deforestation pressure. 
Nonprofit Leaders
  • Ensure operations utilize deforestation-free products and supply chains.
  • Advocate for PAs and for public investments and evaluation indicators to strengthen the effectiveness of PAs.
  • Assist in managing and monitoring PAs, utilizing real-time monitoring and satellite data such as the “Real-Time System for Detection of Deforestation” (DETER).
  • Provide financial support for PAs management, monitoring, and enforcement.
  • Assist in conducting proactive land-use planning to avoid infrastructure or development projects that may interfere with PAs or incentivize deforestation.
  • Advocate for creating legal grievance processes, dispute resolution mechanisms, and restitution procedures for violations or disagreements over PAs.
  • Support high-integrity carbon markets, institutions, rules, and norms to cultivate the demand for high-quality carbon credits.
  • Help shift the public narrative around carbon markets as integrity increases to boost education, dialogue, and awareness.
  • Support PAs, businesses, and investors by sharing data, information, and investment frameworks that successfully avoid deforestation.
  • Help shift public narratives to mobilize public action and build political will for PAs by creating educational campaigns and strengthening networks of stakeholders and rightsholders.
  • Join, support, or create certification schemes like the Forest Stewardship Council for sustainable logging practices.
  • Amplify the voices of local communities and civil society to promote robust media coverage.
  • Invest in and support Indigenous and local communities' capacity for legal protection and public relations.
  • Advocate for non-timber forest products to support local and Indigenous communities.
  • Advocate to remove harmful agricultural subsidies and prioritize reducing food loss and waste.
Investors
  • Create deforestation-free investment portfolios, utilizing data, information, and the latest technology to inform investments.
  • Invest in PA infrastructure, monitoring, management, and enforcement mechanisms.
  • Invest in green bonds or high-integrity carbon credits for forest conservation efforts.
  • Develop financial instruments to invest in PA jurisdictions, focusing on supporting Indigenous communities.
  • Support PAs, other investors, and NGOs by sharing data, information, and investment frameworks that successfully avoid investments that drive deforestation.
  • Join, support, or create science-based certification schemes like the Forest Stewardship Council for sustainable logging practices.
  • Help shift public narratives to mobilize public action and build political will for PAs by creating educational campaigns and strengthening networks of stakeholders and rightsholders.
  • Require portfolio companies to eliminate deforestation from their supply chains and ask that they demonstrate strong PA practices.
  • Consider opportunities to invest in forest monitoring technologies or bioeconomy products derived from standing forests (e.g., nuts, berries, or other derivatives)
Philanthropists and International Aid Agencies
  • Ensure operations utilize deforestation-free products and supply chains.
  • Provide financial support for PAs management, monitoring, and enforcement.
  • Assist in monitoring PAs, utilizing real-time monitoring and satellite data such as the “Real-Time System for Detection of Deforestation” (DETER).
  • Assist in conducting proactive land-use planning to avoid infrastructure or development projects that may interfere with PAs or incentivize deforestation.
  • Support and finance high-integrity carbon markets, institutions, rules, and norms to cultivate the demand for high-quality carbon credits.
  • Help shift the public narrative around carbon markets as integrity increases to boost education, dialogue, and awareness.
  • Support PAs, businesses, and investors by sharing data, information, and investment frameworks that successfully avoid deforestation.
  • Help shift public narratives to mobilize public action and build political will for PAs by creating educational campaigns and strengthening networks of stakeholders and rightsholders.
  • Amplify the voices of local communities and civil society to promote robust media coverage.
  • Invest in and support Indigenous and local communities' capacity for public relations and communications.
  • Financially support Indigenous land tenure.
  • Join, support, or create certification schemes like the Forest Stewardship Council for sustainable logging practices.
  • Advocate for PAs and for public investments and evaluation indicators to strengthen the effectiveness of PAs.
  • Advocate for legal grievances, dispute resolution, and restitution processes.
Thought Leaders
  • Advocate for PAs and for public investments and evaluation indicators to strengthen the effectiveness of PAs.
  • Assist in monitoring PAs, utilizing real-time monitoring and satellite data such as the “Real-Time System for Detection of Deforestation” (DETER).
  • Assist in conducting proactive land-use planning to avoid infrastructure or development projects that may interfere with PAs or incentivize deforestation.
  • Advocate for legal grievances, dispute resolution, and restitution processes.
  • Support high-integrity carbon markets, institutions, rules, and norms to cultivate the demand for high-quality carbon credits.
  • Help shift the public narrative around carbon markets as integrity increases to boost education, dialogue, and awareness.
  • Support PAs, businesses, and investors by sharing data, information, and investment frameworks that successfully avoid deforestation.
  • Help shift public narratives to mobilize public action and build political will for PAs by creating educational campaigns and strengthening networks of stakeholders and rightsholders.
  • Amplify the voices of local communities and civil society to promote robust media coverage.
  • Support Indigenous and local communities' capacity for public relations and communications.
Technologists and Researchers
  • Improving PA monitoring methods and data collection, utilizing satellite imagery and GIS tools.
  • Develop land-use planning tools that help avoid infrastructure or development projects that may interfere with PAs or incentivize deforestation.
  • Create tools for local communities to monitor PAs, such as mobile apps, e-learning platforms, and mapping tools.
  • Conduct evaluations of the species richness of potential PAs and recommend areas of high biodiversity to be designated as PAs.
  • Develop verifiable carbon credits using technology such as blockchain to improve the integrity of carbon markets.
  • Develop supply chain tracking software for investors and businesses seeking to create deforestation-free portfolios and products.
Communities, Households, and Individuals
  • Ensure purchases and investments utilize deforestation-free products and supply chains.
  • Advocate for PAs and for public investments and evaluation indicators to strengthen the effectiveness of PAs.
  • Assist in monitoring PAs, utilizing real-time monitoring and satellite data such as the “Real-Time System for Detection of Deforestation” (DETER).
  • Assist in conducting proactive land-use planning to avoid infrastructure or development projects that may interfere with PAs or incentivize deforestation.
  • Advocate for legal grievances, dispute resolution, and restitution processes.
  • Support Indigenous and local communities' capacity for public relations and communications.
  • Assist with evaluations of the species richness of potential PAs and advocate for PAs in areas of high biodiversity that are threatened.
  • Help shift public narratives to mobilize public action and build political will for PAs by creating educational campaigns and strengthening networks of stakeholders and rightsholders.
  • Undertake forest protection and expansion initiatives locally by working to preserve existing forests and restore degraded forest areas.
  • Engage in citizen science initiatives by partnering with researchers or conservation groups to monitor PAs and document threats. 
Evidence Base

There is high scientific consensus that forest protection is a key strategy for reducing forest loss and addressing climate change. Rates of forest loss are lower inside of PAs and Indigenous peoples’ lands than outside of them. Globally, Wolf et al. (2021) found that rates of forest loss inside PAs are 40.5% lower on average than in unprotected areas, and Li et al. (2024) estimated that overall forest loss is 14% lower in PAs relative to unprotected areas. Regional studies find similar average effects of PAs on deforestation rates. For instance, McNichol et al. (2023) reported 39% lower deforestation rates in African woodlands in PAs relative to unprotected areas, and Graham et al. (2021) reported 69% lower deforestation rates in PAs relative to unprotected areas in Southeast Asia. In the tropics, Sze et al. (2022) found that rates of forest loss were similar between Indigenous lands and PAs, with forest loss rates reduced 17–29% relative to unprotected areas. Baragwanath & Bayi (2020) reported a 75% decline in deforestation in the Brazilian Amazon when Indigenous peoples are granted full property rights.

Reductions in forest loss lead to proportionate reductions in CO₂ emissions. The Intergovernmental Panel on Climate Change (IPCC) estimated that ecosystem protection, including forests, peatlands, grasslands, and coastal wetlands, has a technical mitigation potential of 6.2 Gt CO₂‑eq/yr, 4.0 Gt of which are available at a carbon price less than US$100 tCO₂‑eq/yr  (Nabuurs et al., 2022). Similarly, Griscom et al. (2017) found that avoiding human-caused forest loss is among the most effective natural climate solutions, with a potential impact of 3.6 Gt CO₂‑eq/yr (including forests on peatlands), nearly 2 Gt CO₂‑eq/yr of which is achievable at a cost below US$10/t CO₂‑eq/yr.

The results presented in this document were produced through analysis of 12 global datasets. We recognize that geographic biases can influence the development of global datasets and hope this work inspires research and data sharing on this topic in underrepresented regions.

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Appendix

In this analysis, we integrated global land cover data, maps of forest loss rates, shapefiles of PAs and Indigenous people’s lands, country-scale data on reductions in forest loss inside of PAs, and biome-scale data on forest carbon stocks and sequestration rates to calculate currently protected forest area, total global forest area, and avoided emissions from forest protection. Forested peatlands and mangroves are excluded from this analysis and addressed in the Protect Peatlands and Protect Coastal Wetlands solutions, respectively.

Land cover data

We used two land cover data products to estimate forest extent inside and outside of PAs and Indigenous people’s lands, including: 1) the Global Forest Watch (GFW) tree cover dataset (Hansen et al., 2013), resampled to 30 second resolution, and 2) the 2022 European Space Agency Climate Change Initiative (ESA CCI) land cover dataset at native resolution (300 m). For the ESA CCI dataset, all non-flooded tree cover classes (50, 60, 70, 80, 90) and the “mosaic tree and shrub (>50%)/herbaceous cover (<50%)” class (100) and associated subclasses were included as forests. Both products are associated with uncertainty, which we did not address directly in our calculations. We include estimates from both products in order to provide readers with a sense of the variability in values that can stem from different land cover classification methods, which are discussed in more detail below.

These two datasets have methodological differences that result in substantially different classifications of forest extent, including their thresholds for defining forests, their underlying satellite data, and the algorithms used to classify forests based on the satellite information. For example, the ESA CCI product classifies 300-meter pixels with >15% tree cover as forests (based on our included classes), attempts to differentiate tree crops, relies on a 2003–2012 baseline land cover map coupled with a change-detection algorithm, and primarily uses imagery from MERIS, PROBA-V, and Sentinel missions (ESA CCI 2019). In contrast, the Global Forest Watch product generally requires >30% tree cover at 30-meter resolution, does not exclude tree crops, relies on a regression tree model for development of a baseline tree cover map circa 2010, and primarily uses Landsat ETM+ satellite imagery (Hansen et al., 2013). We recommend that interested readers refer to the respective user guides for each data product for a comprehensive discussion of the complex methods used for their development.

We used the Forest Landscape Integrity Index map developed by Grantham et al. (2020), which classifies forests with integrity indices ≥9.6 as high integrity. These forests are characterized by minimal human disturbance and high connectivity. Mangroves and peatlands were excluded from this analysis. We used a map of mangroves from Giri et al. (2011) and a map of peatlands compiled by Global Forest Watch to define mangrove and peatland extent (accessed at https://data.globalforestwatch.org/datasets/gfw::global-peatlands/about). The peatlands map is a composite of maps from five publications: Crezee et al. (2022), Gumbricht et al. (2017), Hastie et al. (2022), Miettinen et al. (2016), and Xu et al. (2018). For each compiled dataset, the data were resampled to 30-second resolution by calculating the area of each grid cell occupied by mangroves or peatlands. For each grid cell containing forests, the “eligible” forest area was calculated by subtracting the mangrove and peatland area from the total forest area for each forest cover dataset (GFW, ESA CCI, and high-integrity forests).

Protected forest areas

We identified protected forest areas using the World Database on Protected Areas (WDPA, 2024), which contains boundaries for each PA and additional information, including their establishment year and IUCN management category (Ia to VI, not applicable, not reported, and not assigned). For each PA polygon, we extracted the forest area from the GFW, ESA CCI, and high-integrity dataset (after removing the peatland and mangrove areas).

Each protected area was classified into a climate zone based on the midpoint between its minimum and maximum latitude. Zones included tropical (23.4°N–23.4°S), subtropical (23.4°–35° latitude), temperate (35°–50° latitude), and boreal (>50° latitude) in order to retain some spatial variability in emissions factors. We aggregated protected forest cover areas (from each of the two forest cover datasets and the high-integrity forest data) by IUCN class and climate zone. To evaluate trends in adoption over time, we also aggregated protected areas by establishment year. We used the same method to calculate the forest area that could be protected, extracting the total area of each land cover type by climate zone (inside and outside of existing PAs). 

We used maps from Garnett et al. (2018) to identify Indigenous people’s lands that were not inside established PAs. We calculated the total forest area within Indigenous people’s lands (excluding PAs, mangroves, and peatlands) using the same three forest area data sources. 

Forest loss and emissions factors

Forest loss rates were calculated for unprotected areas using the GFW forest loss dataset for 2001–2022, resampled to 1 km resolution. Forest losses were reclassified according to their dominant drivers based on the maps originally developed by Curtis et al. (2018), with updates accessible through GFW. Dominant drivers of forest loss include commodity agriculture, shifting agriculture, urbanization, forestry, and wildfire. We classified all drivers except wildfire as human-caused forest loss for this analysis. We calculated the area of forest loss attributable to each driver within each climate zone, which represented the “baseline” rate of forest loss outside of PAs. 

To calculate the difference in forest loss rates attributable to protection, we used country-level data from Wolf et al. (2021) on the ratio of forest loss in unprotected areas versus PAs, controlling for a suite of socio-environmental characteristics. We classified countries into climate zones based on their median latitude and averaged the ratios within climate zones. We defined the avoided forest loss attributable to protection as the product of the baseline forest loss rate and the ratio of forest loss outside versus inside of PAs.

We calculated the carbon benefits of avoided forest loss by multiplying avoided forest loss by average forest carbon stocks and sequestration rates. Harris et al. (2021) reported carbon stocks and sequestration rates by climate zone (boreal, temperate, subtropical, and tropical), and forest type. Carbon stocks and sequestration rates for primary and old secondary (>20 years old) forests were averaged for this analysis. We calculated carbon sequestration over a 20-yr period to provide values commensurate with the one-time loss of biomass carbon stocks.

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Updated Date

Manage Oil & Gas Methane

Sector
Other Energy
Image
Image
Oil wells and flame coming from flare stack
Coming Soon
Off
Summary

Oil and gas methane management is the process of reducing methane emissions from oil and gas (O&G) supply chains. These supply chains release methane when pipes and other system parts leak or methane is intentionally vented for operation and safety reasons. We define the Manage Oil & Gas Methane solution as adopting approaches to reduce methane emissions, including fixing leaks in components, upgrading control equipment, changing procedures, and destroying methane by burning methane as a fuel or in flares.

Overview

Methane can be unintentionally released due to imperfections and faults along the supply chain or intentionally released as part of operations and maintenance. Atmospheric methane has a GWP of 81 over a 20-yr time basis and a GWP of 28 over a 100-yr time basis (IPCC, 2023). This means methane is 81 times more effective at trapping heat than CO₂.  Because methane is a short-lived climate pollutant that has a much stronger warming effect than CO₂ over a given time period, abating methane will have a relatively large near-term impact on slowing global climate change (IEA, 2023b).

The first step to reduce methane releases from O&G production is to identify where releases occur along the supply chain. Many occur during O&G extraction as methane is either intentionally vented or unintentionally emitted. The International Energy Agency (IEA, 2024) estimated more than 60% of global energy-related methane emissions originated from the O&G sector in 2023, with the remaining emissions mostly coming from coal use and some bioenergy (Figure 1). The United Nations Environment Programme (UNEP) has formed a transparency and accountability initiative whose members are responsible for 42% of global O&G production. It reported that activities involved in exploration and processing of O&G accounted for 83% of total reported O&G emissions from 2020 to 2023, with production processes being responsible for 90% of those emissions (UNEP 2024). Alvarez et al. (2018) found that in the United States, more than 58% of O&G methane emissions came from production and about 20% came from extraction in 2015. 

Figure 1. Methane emissions (kt) from energy sources (IEA, 2025).

Source: International Energy Agency. (2025). Methane tracker: Data tools. https://www.iea.org/data-and-statistics/data-tools/methane-tracker 

O&G producers can reduce their methane emissions by preventing its release or by converting it to CO₂ through combustion. Strategies for reducing O&G methane emissions can be put into two broad categories (Climate & Clean Air Coalition [CCAC], 2021):

Device conversion, replacement, and installation is the practice of fixing leaks in pipes, valves, compressors, pumps, and other equipment. This can include converting natural gas–powered devices to electric, driving compressors/pneumatics with air instead of natural gas, or replacing emitting components with non-emitting ones (Pembina Institute, 2024).

Changes to operations and maintenance practices seek to reduce the intentional venting of methane. They include eliminating the need for blow-down (releasing gases during the maintenance or operation of pipe infrastructure), reducing venting, and capturing methane before it is released into the atmosphere, then using it as fuel for product refining or burning it to convert it into CO₂.

 Leak detection and repair (LDAR) is the practice of regularly monitoring for methane leaks and modifying or replacing leaking equipment. 

References

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Credits

Lead Fellow

  • Jason Lam

Contributors

  • Ruthie Burrows, Ph.D.

  • James Gerber, Ph.D.

  • Yusuf Jameel, Ph.D.

  • Daniel Jasper

  • Alex Sweeney

Internal Reviewers

  • Aiyana Bodi

  • Hannah Henkin

  • Ted Otte

  • Amanda Smith, Ph.D.

  • Paul West, Ph.D.

Effectiveness

Each Mt of methane that is not emitted avoids 81.2 million t CO₂‑eq on a 20-yr basis and 27.9 million t CO₂‑eq on a 100-yr basis (Smith et al., 2021). The GWP of methane is shown in Table 1. If the methane is burned (converted into CO₂ ), the contribution to climate change will still be less than that of methane released directly into the atmosphere. Methane abatement can have a more immediate impact on future global temperature rise because it has a larger and faster warming effect than CO₂. Mitigating methane emissions in the near term can give us more time for reducing GHG emissions in hard to abate sectors.

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Table 1. Effectiveness at reducing emissions.

Unit: t CO₂‑eq /Mt of methane abated

100-yr Global Warming Potential 27,900,000
20-yr Global Warming Potential 81,200,000
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Cost

The cost of methane abatement will vary depending on the type of O&G production, the methane content of the O&G resource, and the strategies used to address it. We averaged the costs for various abatement strategies; methane content is sufficiently high to utilize methane abatement strategies, and energy infrastructure is available to utilize abated methane. The initial cost to abate 1 Mt of methane is US$594 million, the revenue is about US$193 million, and the overall net savings over a 30-yr amortization period is US$173 million. This means that reducing O&G methane emissions offers a net economic gain for O&G producers. We were not able to find operating cost information for the solution, meaning the net economic gain may be lower in practice. 

We considered the baseline scenario where O&G producers do not have systems or practices in place to monitor or stop methane from escaping to the atmosphere and found very limited cost data. We assumed baseline costs to be 0 for initial costs, operational costs, and revenue because current practices and infrastructure are releasing methane to the atmosphere as a part of their existing cost of doing business. 

Many of the initial cost data for methane abatement come from studies estimating how much capital would be required to reach methane emission targets for the O&G industry. These costs are for the global scale of O&G methane abatement and not from the point of view of an individual O&G producer. These studies do not go into detail about the cost of specific abatement strategies or their potential revenues. The context and assumptions are difficult to identify, since the abatement strategies must be tailored to each site. Ocko et al (2021) noted that most (around 80%) of economically feasible methane abatement actions are from the O&G sector. 

Table 2 shows the costs per t CO₂‑eq .The value of the methane sold, instead of released, will often bring in revenue that covers the costs of abatement. Refer to the Appendix for information on the proportion of strategies that O&G producers could implement at low to no cost.

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Table 2. Net cost per unit of climate impact.

Unit: 2023 US$/t CO₂‑eq

median (100-yr basis) -6.20
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Learning Curve

Many of the technology solutions for reducing methane emissions are mature, and we were unable to find literature suggesting the costs to implement these solutions will fall in the future. There may be efficiencies to be gained in LDAR, but little research offers insights into the costs of LDAR programs (Delphi Group, 2017, ICF 2016). 

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Speed of Action

Speed of action refers to how quickly a climate solution physically affects the atmosphere after it is deployed. This is different from speed of deployment, which is the pace at which solutions are adopted.

At Project Drawdown, we define the speed of action for each climate solution as gradualemergency brake, or delayed.

Manage OIl & Gas Methane is an EMERGENCY BRAKE climate solution. It has the potential to deliver a more rapid impact than nominal and delayed solutions. Because emergency brake solutions can deliver their climate benefits quickly, they can help accelerate our efforts to address dangerous levels of climate change. For this reason, they are a high priority.

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Caveats

Burning methane produces CO₂. Though the GWP is far less than that of releasing methane into the atmosphere, the practice still creates a negative climate impact. Depending on the type of O&G production, methane abatement is already practiced with natural gas production and is likely to bring additional profit. However, oil producers who are not already producing methane for profit may not be able to abate methane at a profit. 

Avoiding fossil fuel extraction, transport, and use is the only way to permanently reduce emissions from O&G production. For many low- and middle-income countries (LMICs), O&G is the main source of energy, and it is challenging for them to completely eliminate O&G from their energy mix while they are simultaneously working to improve living standards. High-income countries can help LMICs develop clean energy infrastructure by providing financial and technological support. This will prevent new investments in O&G infrastructure (Laan, et al., 2024), which would result in ongoing emissions for decades. It would also allow LMICs a realistic pathway to transition away from their existing O&G usage. O&G demand must fall by 80% between 2022 and 2050 to stay in alignment with the net-zero emissions scenarios modeled by IEA (2023c). O&G methane abatement will decrease over time as the O&G industry produces less methane to be abated.

Our assessment does not include the impact of the CO₂ created from the destruction of methane.

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Current Adoption

We found little literature quantifying the current adoption of methane management; much of the methane abatement research revolves around the amount of methane that needs to be abated to reach certain climate targets. Based on data from Global Methane Initiative (GMI, 2024), 0 Mt of methane was abated in 2023 and is shown in Table 3.


GMI (2024) provided a conservative estimate of cumulative methane emissions abated each year, with a total of 153.6 Mt CO₂‑eq (5.51 Mt methane) abated as of 2023. The methane is given as a cumulative value to show the incremental increase in total methane abated and to avoid double counting methane abated. GMI members only cover 70% of human-caused methane emissions, and the organization does not capture methane mitigation that occurs outside of GMI members. This suggests that even in years where methane was abated, it would likely still be an underestimate of what may have actually occurred globally. The untapped potential for methane abatement suggests that O&G companies are investing in increasing natural gas production, which may be due to relatively smaller profits from abatement and nonbinding regulations (Shindell et al., 2024). 

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Table 3. Current (2023) adoption level.

Unit: Mt of methane abated/yr

median (50th percentile) 0
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Adoption Trend

Although there is little research specifically quantifying the adoption of methane abatement strategies over time, we estimate the average adoption trend in recent years to be about 0.35 Mt/yr of methane abated. To create this estimate, we relied on GMI analysis (GMI, 2024). GMI showed methane abatement gradually increasing from 2011 to 2023, then tapering off around 2020 and beginning to decrease among its member organizations. Table 4 shows the adoption trend for O&G methane abatement.

The IEA (2025) compiled country-level reporting for GHG emissions with data up to 2024. However, we were not able to use the data for the adoption trend because the changes in methane emissions could have been due to reasons other than methane abatement. In reality, methane emissions may be affected by multiple factors such as natural disasters, political conditions, changes in O&G demand, and changes in O&G industry practices.

Oil and Gas Climate Initiative (2023) data on methane abatement to date for 12 major O&G companies indicate that methane emissions decreased 50% from 2017 to 2022; however, we cannot assume the rest of the O&G industry has made the same level of progress. 

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Table 4. Adoption trend, 2011–2022.

Unit: Mt methane abated/yr

median (50th percentile) 0.35
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Adoption Ceiling

We found an adoption ceiling of 80.7 Mt/yr of methane based on the IEA’s (2025) estimate for total methane emissions from the O&G sector. We assumed that current O&G methane emissions would remain the same into the future with no changes in O&G production or demand. Table 5 shows the adoption ceiling for O&G methane abatement.

Even in the IEA’s (2023c) highest methane abatement energy scenario, only 93% of the methane emissions are reduced by 2050. This would still leave methane emissions being released into the atmosphere by the O&G sector. Reduced O&G production will reduce the amount of methane emissions produced by the O&G sector and consequently reduce the amount of methane that needs to be controlled with methane abatement. 

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Table 5. Adoption ceiling.

Unit: Mt methane abated/yr

median (50th percentile) 80.7
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Achievable Adoption

Based on the limited data available for current adoption and adoption trend, we expect 3.26–8.84 Mt/yr of methane abated. The Achievable – Low value aligns with the IEA (2023c) baseline energy scenario (STEPS), in which partial methane abatement is used but not all technically possible methane is abated. The Achievable – High value aligns with the IEA (2023c) baseline scenario (STEPS), in which full methane abatement is employed (all technically possible methane is abated). We determined this range by taking the total methane abated in these scenarios and dividing by the difference between the target year and 2024 to determine an average amount of methane abated each year to reach the scenario target. Under both scenarios, reduced demand for O&G would reduce methane emissions produced and lower the adoption ceiling possible for methane abatement. Even in scenarios where there is reduced O&G demand, methane abatement would still be required to control fugitive methane emissions from O&G infrastructure and limit global climate change. 

The amount of methane that can be abated varies greatly depending on how much methane the O&G industry produces. If O&G production remains steady, cumulative methane abatement could be 21–81 Mt, according to the IEA energy scenarios. If O&G demand drops 80% (IEA’s Net Zero Emissions scenario), total methane emissions would decline to 18 Mt, and the use of methane abatement would reduce methane emissions further by 17 Mt, leaving only 1 Mt of methane emitted in 2050. 

There has been growing interest from governments and academia to more accurately identify methane emissions using technologies such as satellite sensing (MethaneSat, 2024); UNEP (2024) has set up a monitoring and operator’s alliance group that will share best practices among O&G producers. This alliance group has identified more than 1,200 methane releases, but only 15 responses from government or companies provided detail about the source of the emissions or whether any mitigation action was considered or taken. This shows there are still many opportunities to abate methane emissions. 

More than 150 countries (representing 50% of the world’s human-caused methane emissions) have joined the Global Methane Pledge to reduce methane emissions 30% from 2020 to 2030 (UNEP, 2021). The IEA (2023b) found that many governments already have announced or put into place measures to cut methane emissions, so we expect global methane abatement to grow. 

Conrad et al. (2023) found that the emission inventories reported by the Alberta, Canada, government underestimate the methane emissions from the O&G sector, with a large portion coming from venting. These sources of methane are relatively easier to address and can allow the O&G sector to quickly reduce methane emissions. Table 6 shows the statistical low and high achievable ranges for O&G methane abatement based on different sources for future uptake of O&G methane abatement.

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Table 6. Achievable adoption.

Unit: Mt methane abated/yr

Current Adoption 0
Achievable – Low 3.26
Achievable – High 8.84
Adoption Ceiling 80.66
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We estimate that the O&G industry is currently abating approximately 0 Gt CO₂‑eq/yr on a 100-yr basis and 0 Gt CO₂‑eq/yr on a 20-yr basis using methane abatement strategies. 

As the O&G industry grows or shrinks its emissions, the amount of methane available to abate will change accordingly. If O&G demand and production stay constant to 2050, we estimate 0.09–0.25 Gt CO₂‑eq/yr of methane could be abated. 

However, if O&G demand drops, the methane abatement potential would drop because the O&G sector is producing less methane. This is projected in the different energy scenarios modeled by the IEA (2023). The range between the current O&G methane abatement and the adoption ceiling is shown in Table 7.

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Table 7. Climate impact at different levels of adoption.

Unit: Gt CO₂‑eq/yr, 100-yr basis

Current Adoption 0
Achievable – Low 0.09
Achievable – High 0.25
Adoption Ceiling 2.25
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Additional Benefits

Air Pollution & Health

Methane reacts with other pollutants to create ground-level ozone (Mar et al., 2022), and incomplete combustion of methane releases CO₂, carbon monoxide, black carbon, and other pollutants such as volatile organic compounds (Fawole et al., 2016; Johnson and Coderre, 2012; Motte et al., 2021). These pollutants cause respiratory, reproductive, and neurological diseases; cancer; and premature death (Michanowicz et al., 2021; Motte et al., 2021; Tran et al., 2024), so reducing methane release can improve human health. Reducing or stopping flaring at a small number of the largest active sites can significantly reduce air pollution (Anejionu et al., 2015; Johnson and Coderre, 2012). Van Dingenen et al. (2018) estimate that ambitious methane reduction could prevent 70,000 to 130,000 ozone-related deaths worldwide each year.

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Figure 2. Air pollutants emitted along the O&G life cycle (Moore et al., 2014). BTEX = benzene, toluene, ethylbenzene, xylene.

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Diagram listing air pollutants emitted along the oil and gas life cycle

Source: Moore, C. W., Zielinska, B., Pétron, G., & Jackson, R. B. (2014). Air impacts of increased natural gas acquisition, processing, and use: A critical review. Environmental Science & Technology48(15), 8349–8359. https://doi.org/10.1021/es4053472

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Food Security

Methane reacts with chemicals like VOCs to form tropospheric, or ground-level ozone (Fiore et al., 2002). Ground-level ozone has been linked to reduced crop growth and yields (Mills et al., 2018; Samperdo et al., 2023; Tai et al., 2021). Mitigating methane emissions from O&G could improve food security by reducing ground-level ozone and its harmful impacts on agricultural productivity (Tai et al., 2014; Ramya et al., 2023)

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Risks

If natural gas prices drop there would be less economic reason for industries to voluntarily abate methane (IEA, 2021). Without policy support enforcing the use of methane abatement technologies, methane could continue to be released into the atmosphere. The use of methane abatement will be needed regardless of whether O&G demand remains the same or decreases over time because it has an immediate effect on reducing global temperature rise in the near term.

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Interactions with Other Solutions

Reinforcing

Managing O&G methane can reinforce other solutions that reduce the amount of methane released to the atmosphere. The use of solutions such as applying changes to operations and maintenance; converting, replacing, and installing devices; and LDAR in the O&G industry can help demonstrate the effectiveness and economic case for methane abatement elsewhere and build momentum for adoption of methane abatement in other sectors. 

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Competing

Managing O&G methane has the potential to compete with solutions that provide clean electricity and solutions that focus on fuel switching in transportation because this solution increases O&G supply and can reduce the cost of O&G products. As a result, it could prolong the use of fossil fuels and slow down the transition to clean electricity.

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Dashboard

Solution Basics

Mt methane abated

t CO₂-eq/unit
2.79×10⁷
units/yr
Current 03.268.84
Achievable (Low to High)

Climate Impact

Gt CO₂-eq/yr
Current 0 0.090.25
US$ per t CO₂-eq
-6
Emergency Brake

CH₄

Trade-offs

Methane abatement could increase the use of O&G resources without a broader strategy to reduce reliance on O&G as an energy resource. The use of methane abatement strategies to extend the use of existing O&G infrastructure, or building new O&G infrastructure, will not result in a net decrease in emissions. Beck et al. (2020) found that more than 57% of the GHG emissions from the O&G supply chain are from methane emissions, while the rest is due to CO₂ emissions (15% from the extraction process and 28% from O&G energy use). Even with methane mitigation, continued use of O&G will generate CO₂ emissions and will contribute to global temperature rise. 

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Mt CO2–eq
< 50
50–100
100–200
200–300
> 300
Refining
Production
Transport

Annual emissions from oil and gas sources, 2024

Globally, oil and gas sources (production, refining, and transport) are responsible for 78 of the 347 Mt of anthropogenic methane emissions in 2023. This is equivalent to 2,106 Mt CO2-eq based on a 100-year time scale. Methane emissions occur throughout the supply chain due to equipment imperfections, leaks, and intentional venting.

International Energy Agency. (2024). Methane tracker: Data tools. https://www.iea.org/data-and-statistics/data-tools/methane-tracker

Schmeisser, L., Tecza, A., Huffman, M., Bylsma, S., Delang, M., Stanger, J., Conway, TJ, and Gordon, D. (2024). Fossil fuel operations sector: Oil and gas production and transport emissions [Data set]. RMI, Climate TRACE Emissions Inventory. Retrieved April 18, 2025 from https://climatetrace.org

Wang, J., Fallurin, J., Peltier, M., Conway, TJ, and Gordon, D. (2024). Fossil fuel operations sector: Refining emissions [Data set]. RMI, Climate TRACE Emissions Inventory. Retrieved April 18, 2025 from https://climatetrace.org

Mt CO2–eq
< 50
50–100
100–200
200–300
> 300
Refining
Production
Transport

Annual emissions from oil and gas sources, 2024

Globally, oil and gas sources (production, refining, and transport) are responsible for 78 of the 347 Mt of anthropogenic methane emissions in 2023. This is equivalent to 2,106 Mt CO2-eq based on a 100-year time scale. Methane emissions occur throughout the supply chain due to equipment imperfections, leaks, and intentional venting.

International Energy Agency. (2024). Methane tracker: Data tools. https://www.iea.org/data-and-statistics/data-tools/methane-tracker

Schmeisser, L., Tecza, A., Huffman, M., Bylsma, S., Delang, M., Stanger, J., Conway, TJ, and Gordon, D. (2024). Fossil fuel operations sector: Oil and gas production and transport emissions [Data set]. RMI, Climate TRACE Emissions Inventory. Retrieved April 18, 2025 from https://climatetrace.org

Wang, J., Fallurin, J., Peltier, M., Conway, TJ, and Gordon, D. (2024). Fossil fuel operations sector: Refining emissions [Data set]. RMI, Climate TRACE Emissions Inventory. Retrieved April 18, 2025 from https://climatetrace.org

Geographic Guidance Introduction

Methane abatement is recommended for all oil and gas (O&G) production. The levels of achievable abatement can vary geographically, depending on the extraction technology used (i.e., conventional drilling versus hydraulic fracturing). The Middle East, Europe, Asia, and North America are among the largest O&G producers and have the highest related methane emissions, according to the IEA (2025). Research from Shindell et al. (2024) found that North America, Russia, and several countries in the Middle East and Africa have the most methane abatement potential in O&G. O&G methane abatement could be accelerated if technologies and strategies used in high-income countries are shared with other O&G producing countries.

Action Word
Manage
Solution Title
Oil & Gas Methane
Classification
Highly Recommended
Lawmakers and Policymakers
  • Hold well owners accountable for harm caused to the public and environment.
  • Introduce performance goals for emissions reductions.
  • Use economic measures such as taxes or financial incentives.
  • Regulate key aspects of abatement, such as the use of LDAR, and enforce existing regulations.
  • Utilize data-driven public information programs such as collecting and publishing monitoring and reporting data (“naming and shaming”).
  • Distribute information to operators, such as technology options that fit relevant regulations. 
Practitioners
  • Shift business models toward 100% renewable energy.
  • Detect and repair methane leaks.
  • Implement device conversion, replacement, and installation and LDAR.
  • Change operations and maintenance practices to reduce or recover vented methane.
  • Implement zero-tolerance policies for methane leaks.
  • Increase transparency on emissions and practices.
  • Join cross-company and industry coalitions that facilitate implementation.
Business Leaders
  • Eliminate major methane O&G emitters in your value chains or pressure them to improve performance.
  • Create a plan to transition to renewable energy.
  • Center methane in net-zero strategies, such as establishing internal methane pricing mechanisms and requiring suppliers to meet standards for monitoring and reducing methane emissions in your operations.
  • Identify technology partners that are monitoring and reducing methane emissions and make market commitments.
  • If your company is participating in the voluntary carbon market, look into funding projects that plug methane leaks.
  • Proactively collaborate with government and regulatory actors to support methane abatement policies.
  • Join or support transparency initiatives led by trusted third parties, such as the Oil and Gas Methane Partnership 2.0.
Nonprofit Leaders
  • Help with monitoring and reporting by, for example, utilizing satellite data.
  • Help design policies and regulations that support methane abatement.
  • Educate the public on the urgent need to abate methane.
  • Join or support efforts such as the Global Methane Alliance.
  • Encourage policymakers to create ambitious targets and regulations.
  • Pressure O&G companies to improve their practices.
  • Take or support legal action when companies do not follow relevant regulations.
  • Work with journalists and the media to support public education on the importance of methane abatement.
Investors
  • Pressure and influence portfolio companies to incorporate methane abatement into their operations, noting that this saves money and adds value for investors.
  • Provide capital for nascent methane abatement strategies and leak detection and monitoring instruments.
  • Invest in green bonds and other financial instruments that support methane abatement projects.
  • Seek impact investment opportunities such as sustainability-linked loans in entities that set methane abatement targets.
  • Invest in projects that plug methane leaks. 
Philanthropists and International Aid Agencies
  • Provide capital for methane monitoring, de-risking, and abatement in the early stages of implementation.
  • Support global, national, and local policies that reduce methane emissions.
  • Support accelerators or multilateral initiatives like the Global Methane Hub.
  • If working in a fossil fuel–producing nation, support sustainable developments in other sectors of the economy.
  • Explore opportunities to fund the plugging of abandoned oil or gas wells that leak methane.
  • Advance awareness of the public health and climate threats from the O&G industry.
  • Join, create, or participate in partnerships or certification programs dedicated to managing oil and gas methane.
Thought Leaders
  • Provide technical assistance (e.g., monitoring and reporting) to businesses, government agencies, and other entities working to reduce methane emissions.
  • Help design policies and regulations that support methane abatement.
  • Analyze historical emissions patterns to identify and publicize successful programs.
  • Educate the public on the urgent need to abate methane.
  • Advocate to policymakers for more ambitious targets and regulations.
  • Pressure O&G companies to improve their practices.
  • Join, create, or participate in partnerships or certification programs dedicated to managing oil and gas methane.
Technologists and Researchers
  • Develop new LDAR technologies that reduce cost and required capacity.
  • Develop new technologies for measuring and verifying emissions.
  • Conduct longitudinal studies to measure emissions against objectives or means of enforcement. 
Communities, Households, and Individuals
  • If you are impacted by harmful O&G methane management practices, document your experiences.
  • Reduce household consumption of fossil fuels by adopting clean energy sources, increasing energy efficiency, and replacing fossil fuel-powered equipment with electricity-powered equipment.
  • Share documentation of harmful practices and/or other key messages with policymakers, the press, and the public.
  • Encourage policymakers to improve regulations.
  • Support public education efforts on the urgency and need to address the issue.
Evidence Base

Consensus of effectiveness of abating methane emissions in the O&G sector: High

There is a high level of consensus about the effectiveness of methane abatement strategies. These strategies can be deployed cost effectively in many cases and have an immediate impact on reducing global temperature rise. 

Authoritative sources such as the IEA (2023d), UNEP (2021), and Global Methane Hub (2024) agree that reducing methane emissions can noticeably reduce the rate of global temperature rise. DeFabrizio et al. (2021) identified that methane abatement strategies such as LDAR, switching from natural gas fuel to electric power, using air for pneumatic devices, and using vapor recovery units could reduce O&G methane emissions by 40% by 2030 based on global 2017 O&G emissions. With methane being the second largest contributor to climate change after CO₂, reductions in methane emissions can quickly reduce global temperature rise.

Others (Marks Levi, 2022; DeFabrizio et al., 2021; Malley et al., 2023) have identified that many methane abatement strategies can use existing technologies, often at low cost. Dunsky (2023) found that implementing 24 of the least expensive abatement measures in the exploration and production phases of Canada’s O&G industry could help Canada achieve its 2030 methane target. The IEA (2023a) noted that the O&G industry was responsible for 80 Mt of methane in 2022 and had the largest potential for abatement in the near term. The O&G industry has the potential to abate 60 Mt of methane by 2030 using abatement strategies; 40% of that could be abated at no net cost based on average natural gas prices from 2017 to 2021 (IEA, 2023a).

The results presented in this document summarize findings from more than 15 reviews and meta-analyses and more than 10 original studies reflecting current evidence from two countries, primarily from the United States and Canada, and from global sources. We recognize this limited geographic scope creates bias, and hope this work inspires research and data-sharing on this topic in underrepresented regions.

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Appendix

Data describing methane abatement potential in the O&G industry are often shown in marginal abatement cost curves (MACCs), which incorporate the initial cost, operating cost, revenue, and any extra costs per unit of emissions reduced as one value.

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Figure A1. Marginal abatement cost curves (MACC) for methane abatement in the O&G industry (IEA, 2024).

Image
Cost curve chart.

Source: International Energy Agency (Global Methane Tracker 2024).

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MACCs indicate a range of potential climate actions and show at a glance the magnitude of financial return or financial cost across that range. In Figure A1, for the blocks below the horizontal axis, the value received from the sale of the captured methane is greater than the cost of the solution employed. The width of a block shows the annual amount of emissions a technology can abate, with wider blocks abating more emissions than narrower blocks.

MACCs are useful for identifying which climate action could have the most impact at reducing emissions or which options have a net economic gain. However, they do not illustrate the intricacies that may be in play among different climate actions and can lead users to ignore hard-to-abate emissions. The World Bank (2023) identified that MACCs are useful to find which option will reduce emissions by a set percentage but less useful for reducing absolute emissions to near zero. 

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Updated Date

Manage Coal Mine Methane

Sector
Other Energy
Image
Image
Worker in a coal mine
Coming Soon
Off
Summary

Managing coal mine methane (CMM) is the process of reducing methane emissions released from coal deposits and surrounding rock layers due to mining activities. CMM is naturally found in coal seams and released into the atmosphere when the coal seams are disturbed. Coal mines can continue to emit methane even after being closed or abandoned, which is known as abandoned mine methane (AMM). CMM and AMM can be captured and then utilized as a fuel source or destroyed before they reach the atmosphere [U.S. Environmental Protection Agency (EPA), 2024a].

Overview

CMM is released from coal mines before, during, and after active coal mining and from coal being transported (EPA, 2024a). Atmospheric methane has a GWP of 81 on a 20-yr basis and a GWP of 28 on a 100-yr basis (Intergovernmental Panel on Climate Change [IPCC], 2023). This means methane is 81 times more effective at trapping heat than CO₂. Because methane is a short-lived climate pollutant that has a much stronger warming effect than CO₂ over a given time period, abating methane from coal mines will have a powerful near-term impact on slowing global climate change. If capturing methane is not possible, destroying the methane by burning it is preferable to releasing it.

CMM comes from five major sources throughout the coal mine’s life cycle: 

  1. Degasification systems – pipes installed in the ground to move methane into the atmosphere before starting mining
  2. Ventilation air – air escaping from underground mines when fresh air is used to push out underground methane during mining
  3. Surface mines – exposed coal seams that emit methane directly into the atmosphere during mining
  4. Fugitive emissions – already mined coal that emits methane while being transported or stored
  5. Abandoned or closed mines – coal seams and rock strata that are exposed to air, allowing AMM to escape through existing vents or cracks after mine closure. 

Figure 1. Percent breakdown of CMM sources in the United States, 2021.

Source: U.S. Environmental Protection Agency (2024d). Sources of coal mine methane. Retrieved November 5, 2024. https://www.epa.gov/cmop/sources-coal-mine-methane

CMM management relies on several practices and technologies to reduce the amount of methane released into the atmosphere. The CMM that is captured can be used as a fuel at high concentrations and destroyed through flaring or oxidation at low concentrations. The methane captured from degasification systems typically has a high concentration while fugitive and ventilation methane sources are low concentration. CMM management also includes leak detection and repair using satellites, drones, or other technologies to prevent methane from escaping into the atmosphere.

Underground coal mines have more methane abatement strategies available due to higher average methane concentrations and relative ease of capture. Surface coal mines are exposed directly to the atmosphere and can cover large areas, making them more difficult to abate methane, though there are technologies that can reduce CMM emissions. See the Appendix for more details on the abatement technologies specific to underground and surface coal mines.

References

Assan, S., & Whittle, E. (2023). In the dark: Underreporting of coal mine methane is a major climate risk. Emberhttps://ember-energy.org/latest-insights/in-the-dark-underreporting-of-coal-mine-methane-is-a-major-climate-risk/#supporting-material 

Assan, S. (2024). Understanding the EU’s methane regulation for coal. Emberhttps://ember-energy.org/latest-insights/eumethane-reg-explained/ 

CNX. (2024, March 20). Jumpstarting coal mine methane capture projects for beneficial end use [PowerPoint slides].Global Methane Initiative. https://www.globalmethane.org/resources/details.aspx?resourceid=5386 

DeFabrizio, S., Glazener, W., Hart, C., Henderson, K., Kar, J., Katz, J., Pratt, M. P., Rogers, M., Ulanov, A., & Tryggestad, C. (2021). Curbing methane emissions: How five industries can counter a major climate threat. McKinsey Sustainabilityhttps://www.mckinsey.com/~/media/mckinsey/business%20functions/sustainability/our%20insights/curbing%20methane%20emissions%20how%20five%20industries%20can%20counter%20a%20major%20climate%20threat/curbing-methane-emissions-how-five-industries-can-counter-a-major-climate-threat-v4.pdf 

Domingo, N. G. G., Fiore, A. M., Lamarque, J.-F., Kinney, P. L., Jiang, L., Gasparrini, A., Breitner, S., Lavigne, E., Madureira, J., Masselot, P., das Neves Pereira da Silva, S., Sheng Ng, C. F., Kyselý, J., Guo, Y., Tong, S., Kan, H., Urban, A., Orru, H., Maasikmets, M., … Chen, K. (2024). Ozone-related acute excess mortality projected to increase in the absence of climate and air quality controls consistent with the Paris Agreement. One Earth (Cambridge, Mass.)7(2), 325–335. https://doi.org/10.1016/j.oneear.2024.01.001

Fiore, A. M., Jacob, D. J., & Field, B. D. (2002). Linking ozone pollution and climate change: The case for controlling methane. Geophysical Research Letters29(19), 182-197. https://doi.org/10.1029/2002GL015601 

Gajdzik, B., Tobór-Osadnik, K., Wolniak, R., & Grebski, W. W. (2024). European climate policy in the context of the problem of methane emissions from coal mines in Poland. Energies, 17(10), 2396. https://doi.org/10.3390/en17102396 

Global Energy Monitor (n.d.). Global coal mine tracker. Retrieved February 27, 2025 from https://globalenergymonitor.org/projects/global-coal-mine-tracker/ 

Global Methane Initiative. (2015). Coal mine methane country profiles. https://www.globalmethane.org/documents/toolsres_coal_overview_fullreport.pdf 

Global Methane Initiative (2018). Expert dialogue on ventilation air methane (VAM). https://www.globalmethane.org/documents/res_coal_VAM_Dialogue_Report_20181025.pdf 

Global Methane Initiative (2024a). 2023 Accomplishments in methane mitigation, recovery, and use through U.S.-supported international efforts. https://www.epa.gov/system/files/documents/2024-12/epa430r24009-fy23-accomplishments-report.pdf 

Global Methane Initiative (2024b). International coal mine methane project list. https://globalmethane.org/resources/details.aspx?resourceid=1981 

Hong, C., Mueller, N. D., Burney, J. A., Zhang, Y., AghaKouchak, A., Moore, F. C., Qin, Y., Tong, D., & Davis, S. J. (2020). Impacts of ozone and climate change on yields of perennial crops in California. Nature Food1(3), 166–172. https://doi.org/10.1038/s43016-020-0043-8 

Intergovernmental Panel on Climate Change (IPCC). (2023). In: Climate change 2023: Synthesis report. Contribution of working groups I, II and III to the sixth assessment report of the intergovernmental panel on climate change [core writing team, H. Lee and J. Romero (eds.)]. IPCC, Geneva, Switzerland, pp. 1–34, doi: 10.59327/IPCC/AR6-9789291691647.001 https://www.ipcc.ch/report/ar6/syr/ 

International Energy Agency. (2021). Global methane tracker 2021: Methane abatement and regulation. https://www.iea.org/reports/methane-tracker-2021/methane-abatement-and-regulation 

International Energy Agency. (2023a). Net zero roadmap: A global pathway to keep the 1.5℃ goal in reach - 2023 update. https://www.iea.org/reports/net-zero-roadmap-a-global-pathway-to-keep-the-15-0c-goal-in-reach 

International Energy Agency. (2023b). Strategies to reduce emissions from coal supply. Global Methane Tracker 2023. https://www.iea.org/reports/global-methane-tracker-2023/strategies-to-reduce-emissions-from-coal-supply 

International Energy Agency. (2023c). The imperative of cutting methane from fossil fuels. https://www.iea.org/reports/the-imperative-of-cutting-methane-from-fossil-fuels 

International Energy Agency. (2023d). Global methane tracker 2023: Overview. https://www.iea.org/reports/global-methane-tracker-2023/overview 

International Energy Agency. (2024a). Global methane tracker documentation 2024 version. https://iea.blob.core.windows.net/assets/d42fc095-f706-422a-9008-6b9e4e1ee616/GlobalMethaneTracker_Documentation.pdf 

International Energy Agency. (2024b). Methane tracker: Data tools. https://www.iea.org/data-and-statistics/data-tools/methane-tracker 

International Energy Agency. (2024c). World energy outlook 2024. https://www.iea.org/reports/world-energy-outlook-2024 

International Energy Agency. (2025). Global methane tracker documentation 2025 version. https://iea.blob.core.windows.net/assets/2c0cf2d5-3910-46bc-a271-1367edfed212/GlobalMethaneTracker2025.pdf 

Kholod, N., Evans, M., Pilcher, R. C., Roshchanka, V., Ruiz, F., Coté, M., & Collings, R. (2020). Global methane emissions from coal mining to continue growing even with declining coal production. Journal of Cleaner Production256https://doi.org/10.1016/j.jclepro.2020.120489 

Lewis, C., Tate, R.D., and Mei, D.L. (2024). Fuel operations sector: Coal mining emissions methodology [Data set]. WattTime and Global Energy Monitor, Climate TRACE Emissions Inventory. Retrieved April 18, 2025, from https://climatetrace.org 

Malley, C. S., Borgford-Parnell, N. Haeussling, S., Howard, L. C., Lefèvre E. N., & Kuylenstierna J. C. I. (2023). A roadmap to achieve the global methane pledge. Environmental Research: Climate, 2(1). https://doi.org/10.1088/2752-5295/acb4b4 

Mar, K. A., Unger, C., Walderdorff, L., & Butler, T. (2022). Beyond CO₂ equivalence: The impacts of methane on climate, ecosystems, and health. Environmental Science & Policy134, 127–136. https://doi.org/10.1016/j.envsci.2022.03.027 

MethaneSAT. (2024). Solving a crucial climate challenge. Retrieved September 2, 2024 https://www.methanesat.org/satellite/ 

Mills, G., Sharps, K., Simpson, D., Pleijel, H., Frei, M., Burkey, K., Emberson, L., Cuddling, J., Broberg, M., Feng, Z., Kobayashi, K. & Agrawal, M. (2018). Closing the global ozone yield gap: Quantification and cobenefits for multistress tolerance. Global Change Biology24(10), 4869–4893. https://doi.org/10.1111/gcb.14381 

Ocko, I. B., Sun, T., Shindell, D., Oppenheimer, M. Hristov, A. N., Pacala, S. W., Mauzerall, D. L., Xu, Y. & Hamburg, S. P. (2021). Acting rapidly to deploy readily available methane mitigation measures by sector can immediately slow global warming. Environmental Research, 16(5). https://doi.org/10.1088/1748-9326/abf9c8 

Ramya, A., Dhevagi, P., Poornima, R., Avudainayagam, S., Watanabe, M., & Agathokleous, E. (2023). Effect of ozone stress on crop productivity: A threat to food security. Environmental Research, 236(2), 116816. https://doi.org/10.1016/j.envres.2023.116816 

Roshchanka, V., Evans, M., Ruiz, F., & Kholod, N. (2017). A strategic approach to selecting policy mechanisms for addressing coal mine methane emissions: A case study on Kazakhstan. Environmental Science & Policy78, 185–192. https://doi.org/10.1016/j.envsci.2017.08.005 

Roshchanka, V., & Talkington, C. (2022). Effective monitoring, reporting and verification of methane emissions in the coal industry and the linkage to methane mitigation. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4298409

Rystad Energy. (2023, October 18). Methane tracking technologies study [PowerPoint slides]. Environmental Defense Fund. https://www.edf.org/sites/default/files/documents/Methane%20Tracking%20Technologies%20Study%20Oct%2018%202023.pdf 

Sampedro, J., Waldhoff, S., Sarofim, M., & Van Dingenen, R. (2023). Marginal damage of methane emissions: Ozone impacts on agriculture. Environmental and Resource Economics84(4), 1095–1126. https://doi.org/10.1007/s10640-022-00750-6 

Setiawan, D. & Wright, C. (2024). The risks of ignoring methane emissions in coal mining. Emberhttps://ember-energy.org/latest-insights/the-risks-of-ignoring-methane-emissions-in-coal-mining/#supporting-material 

Shindell, D., Sadavarte, P., Aben, I., Bredariol, T. O., Dreyfus, G., Höglund-Isaksson, L., Poulter, B., Saunois, M., Schmidt, G. A., Szopa, S., Rentz, K., Parsons, L., Qu, Z., Faluvegi, G., & Maasakkers, J. D. (2024). The methane imperative. Frontiershttps://www.frontiersin.org/journals/science/articles/10.3389/fsci.2024.1349770/full

Silvia, F., Talia, V., & Di Matteo, M. (2021). Coal mining and policy responses: Are externalities appropriately addressed? A meta-analysis. Environmental Science & Policy126, 39–47. https://doi.org/10.1016/j.envsci.2021.09.013

Smith, C., Nicholls, Z. R. J., Armour, K., Collins, W., Forster, P., Meinshausen, M., Palmer, M. D., & Watanabe, M. (2021). The earth’s energy budget, climate feedbacks, and climate sensitivity supplementary material (climate change 2021: The physical science basis. Contribution of working group I to the sixth assessment report of the Intergovernmental Panel on Climate Change). Intergovernmental Panel on Climate Change (IPCC). https://www.ipcc.ch/ 

Tai, A. P., Sadiq, M., Pang, J. Y., Yung, D. H., & Feng, Z. (2021). Impacts of surface ozone pollution on global crop yields: comparing different ozone exposure metrics and incorporating co-effects of CO₂.  Frontiers in Sustainable Food Systems5, 534616. https://doi.org/10.3389/fsufs.2021.534616 

Tao, S., Chen, S., & Pan, Z. (2019). Current status, challenges, and policy suggestions for coalbed methane industry development in China: A review. Energy Science & Engineering7(4), 1059–1074. https://doi.org/10.1002/ese3.358

Tate, R. D., (2022). Bigger than oil or gas? Sizing up coal mine methane. Global Energy Monitorhttps://globalenergymonitor.org/wp-content/uploads/2022/03/GEM_CCM2022_final.pdf 

United Nations Economic Commission for Europe (UNECE). (2019). Best practice guidance for effective methane recovery and use from abandoned coal mines. https://unece.org/fileadmin/DAM/energy/images/CMM/CMM_CE/Best_Practice_Guidance_for_Effective_Methane_Recovery_and_Use_from_Abandoned_Coal_Mines_FINAL__with_covers_.pdf 

United Nations Economic Commission for Europe (UNECE). (2022). Best practice guidance for effective management of coal mine methane at national level: Monitoring, reporting, verification and mitigation. https://globalmethane.org/documents/Best%20Practice%20Guidance%20for%20Effective%20Management%20of%20Coal%20Mine%20Methane%20at%20National%20Level%20Monitoring,%20Reporting,%20Verification%20and%20Mitigation.pdf 

United Nations Environment Program. (2022). Coal mine methane science studies road map. https://www.unep.org/resources/other-evaluation-reportsdocuments/coal-mine-methane-science-studies-road-map 

U.S. Center for Disease Control and Prevention, (2024, September 25). Mining fires and explosionshttps://www.cdc.gov/niosh/mining/topics/fires-explosions.html 

U.S. Environmental Protection Agency (2019). Global non-CO₂ greenhouse gas emission projections & mitigation 2015 - 2050https://www.epa.gov/sites/default/files/2019-09/documents/epa_non-co2_greenhouse_gases_rpt-epa430r19010.pdf 

U.S. Environmental Protection Agency (2024a). About coal mine methane. Retrieved November 5, 2024. https://www.epa.gov/cmop/about-coal-mine-methane 

U.S. Environmental Protection Agency (2024b). Coalbed methane outreach program accomplishmentshttps://www.epa.gov/cmop/coalbed-methane-outreach-program-accomplishments 

U.S. Environmental Protection Agency (2024c). GHGRP underground coal mines. Retrieved November 5, 2024. https://www.epa.gov/ghgreporting/ghgrp-underground-coal-mines 

U.S. Environmental Protection Agency (2024d). Sources of coal mine methane. Retrieved November 5, 2024. https://www.epa.gov/cmop/sources-coal-mine-methane 

Ward, K., Mountain State Spotlight, Mierjeski, A. & Scott Pham. (2023). In the game of musical mines, environmental damage takes a back seat. ProPublicahttps://www.propublica.org/article/west-virginia-coal-blackjewel-bankruptcy-pollution 

Zhu, R., Khanna, N., Gordon, J., Dai, F., & Lin, J. (2023). Abandoned coal mine methane reduction. Berkeley Labhttps://ccci.berkeley.edu/sites/default/files/Abandonded%20Coal%20Mines_Final%20%28EN%29.pdf 

Credits

Lead Fellow

  • Jason Lam

Contributors

  • James Gerber, Ph.D.

  • Yusuf Jameel, Ph.D. 

  • Ruthie Burrows, Ph.D.

  • Daniel Jasper

  • Alex Sweeney

Internal Reviewers

  • Sarah Gleeson, Ph.D.

  • Aiyana Bodi

  • Hannah Henkin

  • Ted Otte

  • Amanda Smith, Ph.D.

  • Paul West, Ph.D.

Effectiveness

Each Mt of methane that is not emitted avoids 81.2 Mt CO₂‑eq on a 20-yr basis and 27.9 Mt CO₂‑eq on a 100-yr basis (Smith et al., 2021). The GWP of methane is shown in Table 1. If the methane is converted into CO₂ through burning the contribution to global climate change will still be less than if the methane were released into the atmosphere. Methane abatement can have a more immediate impact on future global temperature rise because it has a larger and faster warming effect than CO₂. Mitigating methane emissions in the near term can give us more time for reducing GHG emissions in hard to abate sectors.

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Table 1. Effectiveness at reducing emissions.

Unit: t CO₂‑eq/Mt methane abated

100-yr GWP 27,900,000
20-yr GWP 81,200,000
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Cost

The cost of methane abatement will vary depending on the type of coal mine, the methane content of the coal seam, the strategies used, and the availability of financial support for methane abatement. For our analysis, we average the costs for various feasible abatement strategies under two general assumptions: sufficiently high methane content for any of the major abatement strategies to be applied (IEA, 2024a) and the ability to use the abated methane on-site or sell it to natural gas companies. The initial cost to abate 1 Mt of methane is US$1.5 billion, the operating cost is about US$130 million, revenue is about US$260 million and the overall net savings over a 30-yr amortization period is US$90 million. We were only able to find revenue information from the IEA (2023b, 2024a), meaning the net cost could be different than shown here due to the site specific nature of methane abatement strategies. 

We considered the baseline scenario to be coal mining practices without methane abatement; all cost estimates here are relative to that scenario.

Cost data were limited for this solution. The available costs for a specific abatement strategy were normalized according to the cost of abating one Mt of methane, and it was assumed that a single strategy abated all of the methane for the coal mine. This results in an overestimate of the effectiveness of any individual strategy. In reality, multiple strategies are likely to be used. The costs shown in Table 2 are for the global scale of coal methane abatement and not from the point of view of an individual coal producer. Many studies that look at global coal methane abatement put multiple abatement strategies together and do not go into detail about the individual technology costs. The IEA (2024a) included costs for individual CMM abatement strategies; however, the costs were only applicable for coal mines that produce enough methane for it to be economically feasible to deploy the specific abatement strategy. Flaring is an effective strategy for destroying captured methane, but will not create revenue in the absence of a carbon market. For more details on important aspects for coal methane abatement strategies, refer to the Appendix.

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Table 2. Cost per unit climate impact.

Unit: 2023 US$/t CO₂‑eq, 100-yr basis

median -3.17
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Learning Curve

Many of the solutions for reducing methane emissions from coal mining are mature. Research from Rystad (2023) found that technologies for abating CMM emissions, such as drainage gas utilization, sealing and rerouting, and flaring, were considered mature in Australian coal mines. Regenerative thermal oxidation technology is in commercial use for destroying volatile organic compounds and can be used for destroying ventilation air methane (VAM), but the manufacturers have little interest in improving the technology for use in coal mines without confirmed markets (GMI, 2018; Rystad, 2023). We do not foresee the costs of implementing these solutions falling in the future. CMM regulations may encourage manufacturers to improve oxidation technology, but the technology is already used commercially, so there may not be large efficiency gains.

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Speed of Action

Speed of action refers to how quickly a climate solution physically affects the atmosphere after it is deployed. This is different from speed of deployment, which is the pace at which solutions are adopted.

At Project Drawdown, we define the speed of action for each climate solution as gradualemergency brake, or delayed.

Manage Coal Mine Methane is an EMERGENCY BRAKE climate solution. It has the potential to deliver a more rapid impact than nominal and delayed solutions. Because emergency brake solutions can deliver their climate benefits quickly, they can help accelerate our efforts to address dangerous levels of climate change. For this reason, they are a high priority.

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Caveats

CMM abatement consists of capturing methane that would otherwise be released into the atmosphere. If the methane is burned, CO₂ will be emitted as a byproduct; however, this provides a net climate benefit compared to the methane that would be emitted. CMM emissions management can be avoided by not extracting, transporting, or using coal in the first place. 

As coal demand drops, the number of closed or abandoned coal mines will increase. These mines will continue to release AMM into the atmosphere for many decades. Sealing underground mines can stop methane from being released, but seals have been known to fail and require ongoing monitoring to verify methane is not escaping (Kholod et al., 2020). Gas collection systems can be used to capture AMM, but the CO₂ produced will need to be captured for complete emission reductions. Flooding underground coal mines is very effective at stopping methane from being released; however, there are concerns about water contamination (McKinsey, 2021).

Our assessment does not include the impact of the CO₂ created from the destruction of methane.

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Current Adoption

We estimated that the coal sector abated 0.59 Mt of methane in 2023 and released 40 Mt in 2024 (IEA, 2025). Reports from EPA (2022), and GMI (2023) estimated the amount of CMM abated to date, and the statistical ranges from the sources are shown in Table 3. However, most of the data focused on coal mines in the United States. The EPA (2024b) stated that 0.3 Mt of methane was captured in 2021 due to the Coalbed Methane Outreach Program. CMM is controlled at coal mines for health and safety reasons, but only in 2024 was regulation introduced for reducing methane emissions from the energy sector in the European Union (Assan, 2024).


GMI (2024a) reports that 0.79 Mt of methane was abated from coal mines in 2023 among its member countries. The organization includes 48 GMI member countries but covers only 70% of human-caused methane emissions and does not track methane mitigation that has occurred outside of the group. GMI (2024b) currently lists more than 471 CMM abatement projects in 20 countries worldwide. According to Global Energy Monitor (n.d.), over 6,000 coal mines were active in more than 70 countries as of April 2024. With these data sources, we consider our analysis of the current adoption of CMM abatement as conservative. 

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Table 3. Current (2023) adoption level.

Unit: Mt/yr of methane abated

25th percentile 0.49
mean 0.59
median (50th percentile) 0.59
75th percentile 0.69
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Adoption Trend

Although there are little data specifically quantifying the adoption trend of methane abatement strategies, we estimate the median adoption trend to be about 0.60 Mt/yr of methane abated.  Table 4 shows the adoption trend for CMM abatement.

GMI (2024) reported methane abatement staying relatively stable from 2016 to 2023 at about 0.8 Mt/yr, with a small increase to 1.0 Mt of methane in 2019–2022 before decreasing back to 0.8 Mt in 2023, causing the adoption trend to be higher than the current adoption value we state above. The EPA (2024a) Coalbed Methane Outreach Program showed fairly stable emission reductions of around 0.33 Mt/yr between 2016 and 2022. The annual methane emission abatement from this program gradually increased 2003–2011, followed by a continued trend of methane abatement at a slower rate 2011–2022. The IEA (2024b) found that almost 2.0 Mt of methane was emitted in 2023 by the United States coal industry, and 60% of those emissions could be abated.

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Table 4. (2016–2023) adoption trend.

Unit: Mt/yr methane abated

25th percentile 0.46
mean 0.60
median (50th percentile) 0.60
75th percentile 0.73
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Adoption Ceiling

We found an adoption ceiling of about 40.3 Mt/yr of methane based on the IEA’s (2025) estimate for total methane emissions from the coal mine sector. We assumed that current CMM emissions would remain the same into the future with no changes in coal production or demand. Table 5 shows the adoption ceiling for coal mine methane abatement.

Even in the IEA’s (2023c) highest methane abatement energy scenario, only 93% of the methane emissions are reduced by 2050. This would still leave the coal sector releasing methane into the atmosphere. Reduced coal production will reduce the amount of methane emissions produced by the coal sector and consequently reduce the amount of methane that needs to be controlled with methane abatement. However, methane abatement will still be important for abating the remaining CMM emissions and the growing proportion of AMM emissions (IEA, 2023c, Kholod et al., 2020). 

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Table 5. Adoption ceiling.

Unit: Mt/yr of methane abated

median (50th percentile) 40.30
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Achievable Adoption

The amount of methane that could be abated from CMM varies greatly depending on global coal demand. We estimate an achievable adoption range of 2.83–4.40 Mt/yr of methane abated.The Achievable – Low value aligns with the IEA (2023c) Announced Pledges scenario, in which all announced climate policies are met and full methane abatement is employed, but net-zero emissions are not achieved. This range of high and low values was determined by taking the total methane abated in these scenarios and dividing by the difference between the target year and 2024 to determine an average amount of methane abated each year to reach the scenario target. 

The Achievable – High value aligns with Ocko et al.(2021), where all economically and technically feasible methane abatement is employed by 2030. DeFabrizio et al. (2021) estimated that the degasification of underground mines and flaring would be the source of most methane abatement from coal mining, with degasification of surface mines abating a smaller proportion of methane over time. However, research from Kholod et al. (2020) suggested there will be an increase in AMM emissions as coal mines are closed. Methane emissions from AMM are not extensively monitored right now, and there is limited research on the topic. Methane abatement strategies will be needed to abate growing AMM emissions (Zhu et al, 2023). 

In addition, some research suggested CMM is being underestimated, with global emissions being as high as 67 Mt/yr (Assan & Whittle, 2023). If coal demand drops by 90%, as outlined in IEA’s Net Zero Emissions scenario, total coal methane emissions would decline to 3 Mt/yr, and the use of methane abatement would reduce emissions by 2 Mt/yr, leaving only 1 Mt/yr of CMM emitted in 2050. 

With growing interest and investment from governments and academia in identifying methane leaks using technologies such as satellite sensing (MethaneSAT, 2024), the opportunities for methane abatement will increase. Over 150 countries have joined the Global Methane Pledge (representing 50% of the world’s human-caused methane) to reduce methane emissions by 30% of 2020 emissions by 2030 (UNEP, 2021). The IEA (2023a) found that even in a baseline scenario, many governments have announced or put in place measures to cut methane emissions; we would expect a growing trend in global methane abatement to occur. The IEA (2024c) states that in all scenarios global coal demand will decrease. Table 6 shows the statistical low and high achievable ranges for CMM abatement based on different sources for future uptake of CMM abatement.

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Table 6. Range of achievable adoption levels.

Unit: Mt/yr methane abated

Current Adoption 0.59
Achievable – Low 2.83
Achievable – High 4.40
Adoption Ceiling 40.30
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We estimate that the coal industry is currently abating approximately 0.02 Gt CO₂‑eq/yr on a 100-yr basis and 0.03 Gt CO₂‑eq/yr on a 20-yr basis using methane abatement strategies. This is about 1% of total methane emissions emitted in 2024 (IEA, 2025). 

As the coal industry opens or closes coal mines due to changing coal demand, the opportunities for CMM abatement projects will change along with it. If coal demand gradually drops by 2050, more than 0.12 Gt CO₂‑eq/yr of methane could be abated. However, if coal demand drops more quickly from the implementation of energy and climate policies, the methane abatement potential would drop because the coal sector is producing less methane. This is projected in the different energy scenarios modeled by the IEA (2023c). The range between the current CMM abatement and the adoption ceiling is shown in Table 7.

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Table 7. Climate impact at different levels of adoption.

Unit: Gt CO₂‑eq/yr, 100-yr basis

Current Adoption 0.02
Achievable – Low 0.08
Achievable – High 0.12
Adoption Ceiling 1.12
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Additional Benefits

Air Quality & Health

Around 10% of anthropogenic methane comes from coal mines (IEA, 2024a). Methane released from coal mines contributes to ground-level ozone pollution, which can harm lung function, exacerbating conditions like asthma, bronchitis, and emphysema, and can contribute to premature mortality (Mar et al., 2022). Domingo et al. (2024) estimated that ground-level ozone accounted for about 6,600 excess deaths per year in about 400 cities globally. 

Methane released from coal mines also endangers workers’ safety in the mines, increasing the possibility of explosions, which are a significant source of fatalities and injuries (CDC, 2024). In the United States, from 2006 to 2011, mine explosions were responsible for about 25% of fatalities in the mining industry (CDC, 2024). While advances in methane mitigation technologies can prevent explosions and fatalities, mines across LMICs usually do not have methane mitigation protocols in place. Installing methane abatement strategies can potentially protect workers from such explosions (Tate, 2022).

Food Security 

Methane reacts with chemicals like VOCs to form tropospheric, or ground-level ozone (Fiore et al., 2002). Ground-level ozone has been linked to reduced crop growth and yields (Mills et al., 2018; Samperdo et al., 2023; Tai et al., 2021). Mitigating methane emissions from coal mines could improve food security by reducing ground-level ozone and its harmful impacts on agricultural productivity (Tai et al., 2014; Ramya et al., 2023)

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Risks

CMM abatement strategies could be implemented on a voluntary basis due to favorable natural gas prices, but if natural gas prices drop there is less economic incentive to abate methane (IEA, 2021). Without policy support enforcing methane abatement, emissions could continue, especially from VAM and AMM, which are more difficult to capture and use. Ensuring long-term monitoring and abatement of CMM can be challenging if coal mines are abandoned due to owners going bankrupt, leaving environmental damages unpaid for and remediation up to nearby communities or taxpayers (Ward et al., 2023). 

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Interactions with Other Solutions

Reinforcing

Managing coal methane can have a positive impact on other solutions that reduce methane release to the atmosphere. The use of technologies such as degasification systems, methane destruction, and Leak Detection and Repair (LDAR) in the coal mine sector can demonstrate the effectiveness and economic case for employing methane abatement. This would build momentum for the widespread adoption of methane abatement because successes in the coal sector can be leveraged and applied to other sectors. In addition, LDAR is a key part in identifying where we can abate methane emissions and lessons learned from the coal sector can be applied to other sites, as well as identifying methane leaks in general. 

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Competing

CMM management interacts negatively with solutions that provide clean electricity as this solution captures methane that can be used as an energy source, prolonging the use of natural gas infrastructure and reducing the cost of methane as a fuel source. 

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Dashboard

Solution Basics

1 Mt of methane abated

t CO₂-eq/unit
2.79×10⁷
units/yr
Current 0.592.834.4
Achievable (Low to High)

Climate Impact

Gt CO₂-eq/yr
Current 0.02 0.080.12
US$ per t CO₂-eq
-3
Emergency Brake

CH₄

Trade-offs

Methane abatement strategies are a powerful tool to reduce methane emissions; however, providing a secondary source of revenue for coal mining could increase the profitability and longevity of some coal mines. A broad strategy to reduce reliance on coal as an energy resource is needed to reduce the amount of CMM generated. Even with methane abatement strategies in place, methane used as a fuel or destroyed through flaring will still emit GHGs and contribute to global climate change.

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Mt CO2–eq
< 1
1–3
3–5
5–7
7–9
> 9

Annual emissions from coal mine sources, 2024

Globally, coal mines are responsible for 40 of the 347 Mt of anthropogenic methane emissions in 2023. This is equivalent to 1,080 Mt CO2–eq based on a 100-year time scale. Methane emissions occur throughout the life of a coal mine and can continue after mines are closed or abandoned.

Lewis, C., Tate, R.D., and Mei, D.L. (2024). Fuel operations sector: Coal mining emissions methodology [Data set]. WattTime and Global Energy Monitor, Climate TRACE Emissions Inventory. Retrieved April 18, 2025, from https://climatetrace.org

International Energy Agency. (2024). Methane tracker: Data tools. https://www.iea.org/data-and-statistics/data-tools/methane-tracker

Mt CO2–eq
< 1
1–3
3–5
5–7
7–9
> 9

Annual emissions from coal mine sources, 2024

Globally, coal mines are responsible for 40 of the 347 Mt of anthropogenic methane emissions in 2023. This is equivalent to 1,080 Mt CO2–eq based on a 100-year time scale. Methane emissions occur throughout the life of a coal mine and can continue after mines are closed or abandoned.

Lewis, C., Tate, R.D., and Mei, D.L. (2024). Fuel operations sector: Coal mining emissions methodology [Data set]. WattTime and Global Energy Monitor, Climate TRACE Emissions Inventory. Retrieved April 18, 2025, from https://climatetrace.org

International Energy Agency. (2024). Methane tracker: Data tools. https://www.iea.org/data-and-statistics/data-tools/methane-tracker

Geographic Guidance Introduction

Coal mine methane abatement is applicable in any area with coal mines. While China and the United States are the largest coal producers, Russia, Ukraine, Kazakhstan, and India also generated more than 10 Mt CO₂-eq (100–yr) from coal mines in 2015 (GMI, 2015).

Levels of methane emissions from coal mines can vary geographically. The greatest abatement potential is in China, Kazakhstan, Australia, and several countries in Eastern Europe and Africa (Shindell et al., 2024). However, methane abatement is recommended for all coal mining activities, and high-income countries are in a position to share supportive technologies and practices for coal mine methane abatement with other coal-producing countries to reduce methane emissions from active and abandoned or closed mines.

Action Word
Manage
Solution Title
Coal Mine Methane
Classification
Highly Recommended
Lawmakers and Policymakers
  • Create policies based on global best practices, such as the IEA’s roadmap to implementing CMM regulations.
  • Require all coal mines to measure and report on methane emissions.
  • Invest in monitoring, reporting, and verification technologies, such as satellites, and support low-income countries in monitoring emissions.
  • Provide financial incentives, such as reduced taxes, subsidies, grants, low-interest loans, and feed-in tariffs, for adopting drainage and capture technologies suitable for the region.
  • Require closed and abandoned mines to be sealed and monitored.
  • Compile or update global inventories of the status of abandoned and closed mines.
  • When possible, do not approve the construction of new coal mines.
  • Require low-emitting technologies for equipment, coal processing, storage, and transportation.
  • Develop infrastructure to use captured CMM, including gas processing, grid connections, and industry capacity.
  • Establish clear resource rights to methane emitted from active and abandoned mines.
  • Include CMM recovery in Nationally Determined Contributions and other international reporting instruments.
  • Provide educational resources to industry leaders, including potential reduction options, workshops, actionable reports, direct engagements, and demonstrations.
  • Join, support, or create public initiatives such as the Global Methane Initiative, Global Methane Pledge, or Global Methane Hub.
Practitioners
  • Utilize or destroy CMM to the maximum extent.
  • Work with policymakers to create policies based on global best practices, such as the IEA’s roadmap to implementing CMM regulations.
  • Measure and report on methane emissions.
  • Invest in monitoring, reporting, and verification technologies, such as satellites, and support low-income countries to monitor emissions.
  • Take advantage of any financial incentives, such as reduced taxes, subsidies, grants, low-interest loans, and feed-in tariffs, to adopt drainage and capture technologies suitable for the region.
  • Ensure abandoned and closed mines are sealed and monitored.
  • Compile or update global inventories of the status of abandoned and closed mines.
  • When possible, do not approve the construction of new coal mines.
  • Develop infrastructure to use captured CMM, including gas processing, grid connections, and industry capacity.
  • Assist policymakers in establishing clear resource rights to methane emitted from active and abandoned mines.
  • Use existing drainage systems for gas capture, utilization, and sale.
  • Improve technologies, such as thermal oxidizers, for the purposes of VAM destruction.
  • Partner with carbon markets that are linked to CMM abatement.
  • Improve CMM emissions modeling and monitoring, including satellites and on-the-ground methods.
  • Invest in R&D to improve extraction, capture, storage, transportation, and utilization technologies.
  • Join, support, or create public initiatives such as the Global Methane Initiative, Global Methane Pledge, or Global Methane Hub.
  • Utilize educational resources to industry leaders, including potential reduction options, workshops, actionable reports, direct engagements, and demonstrations.
Business Leaders
  • Ensure that operations or investments that include coal mines utilize or destroy methane emissions.
  • Do not invest, plan to use, or create agreements with new coal mines.
  • Invest in high-integrity carbon markets that are linked to CMM abatement.
  • Invest in R&D to improve the efficiency of extraction, capture, storage, transportation, and utilization technologies.
  • Develop infrastructure to use captured CMM, including gas processing, grid connections, and industry capacity.
  • Utilize existing data sets such as the UN’s International Methane Emissions Observatory to inform current and future decisions.
  • Join, support, or create public initiatives such as the Global Methane Initiative, Global Methane Pledge, or Global Methane Hub.
Nonprofit Leaders
  • Advocate for regulating CMM emissions and local policies based on global best practices, such as the IEA’s roadmap to implementing CMM regulations.
  • Assist coal mines in measuring and reporting or conducting independent studies on CMM emissions.
  • Advocate for financial incentives, such as reduced taxes, subsidies, grants, low-interest loans, and feed-in tariffs, for the adoption of drainage and capture technologies suitable for the region.
  • Advocate to stop the construction of new coal mines.
  • Compile or update global inventories of the status of abandoned and closed mines.
  • Help create high-integrity carbon markets that are linked to CMM abatement.
  • Provide educational resources to industry leaders, including potential reduction options, workshops, actionable reports, direct engagements, and demonstrations.
  • Join, support, or create public initiatives such as the Global Methane Initiative, Global Methane Pledge, or Global Methane Hub.
Investors
  • Invest in monitoring, reporting, and verification technologies, such as satellites, and support low-income countries to monitor emissions.
  • Provide financial support through low-interest loans or green bonds to adopt drainage and capture technologies suitable for the region.
  • Do not invest in constructing new coal mines and require any existing investments to provide transparent emissions data and time-based reduction strategies.
  • Invest in R&D to improve the efficiency of extraction, capture, storage, transportation, and utilization technologies.
  • Develop infrastructure to use captured CMM, including gas processing, grid connections, and industry capacity.
  • Invest in high-integrity carbon markets that are linked to CMM abatement.
  • Join, support, or create public initiatives such as the Global Methane Initiative, Global Methane Pledge, or Global Methane Hub.
Philanthropists and International Aid Agencies
  • Invest in monitoring, reporting, and verification technologies, such as satellites, and support low-income countries to monitor emissions.
  • Provide financial support to adopt drainage and capture technologies suitable for the region.
  • Invest in R&D to improve the efficiency of extraction, capture, storage, transportation, and utilization technologies.
  • Assist in establishing clear resource rights to methane emitted from active and abandoned mines.
  • Help create high-integrity carbon markets that are linked to CMM abatement.
  • Join, support, or create public initiatives such as the Global Methane Initiative, Global Methane Pledge, or Global Methane Hub.
  • Provide educational resources to industry leaders, including potential reduction options, workshops, actionable reports, direct engagements, and demonstrations.
  • Advocate for regulating CMM emissions and local policies based on global best practices, such as the IEA’s roadmap to implementing CMM regulations.
  • Compile or update global inventories of the status of abandoned and closed mines.
Thought Leaders
  • Advocate for regulating CMM emissions and local policies based on global best practices, such as the IEA’s roadmap to implementing CMM regulations.
  • Assist coal mines in measuring and reporting or conducting independent studies on CMM emissions.
  • Advocate for financial incentives, such as reduced taxes, subsidies, grants, low-interest loans, and feed-in tariffs, for adopting drainage and capture technologies suitable for the region.
  • Assist in establishing clear resource rights to methane emitted from active and abandoned mines.
  • Advocate to stop the construction of new coal mines.
  • Compile or update global inventories of the status of abandoned and closed mines.
  • Help create high-integrity carbon markets that are linked to CMM abatement.
  • Provide educational resources to industry leaders, including potential reduction options, workshops, actionable reports, direct engagements, and demonstrations.
  • Join, support, or create public initiatives such as the Global Methane Initiative, Global Methane Pledge, or Global Methane Hub.
Technologists and Researchers
  • Improve CMM emissions modeling and monitoring, including satellites and on-the-ground methods.
  • Compile or update global inventories of the status of abandoned and closed mines.
  • Develop infrastructure to use captured CMM, including gas processing, grid connections, and industry capacity.
  • Discover ways to utilize existing drainage systems for gas capture, utilization, and sale.
  • Improve technologies, such as thermal oxidizers, for the purposes of VAM destruction.
  • Develop new ways to improve extraction, capture, storage, transportation, and utilization technologies.
  • Develop verifiable carbon credits using technology such as blockchain to improve the integrity of carbon markets.
  • Improve the efficiency of mining equipment to reduce maintenance requirements and costs.
Communities, Households, and Individuals
  • Advocate for regulating CMM emissions and local policies based on global best practices, such as the IEA’s roadmap to implementing CMM regulations.
  • Advocate for financial incentives, such as reduced taxes, subsidies, grants, low-interest loans, and feed-in tariffs, for the adoption of drainage and capture technologies suitable for the region.
  • Advocate to stop the construction of new coal mines.
  • Assist coal mines in measuring and reporting or conducting independent studies on CMM emissions.
  • Provide educational resources to industry leaders, including potential reduction options, workshops, actionable reports, direct engagements, and demonstrations.
  • Join, support, or create public initiatives such as the Global Methane Initiative, Global Methane Pledge, or Global Methane Hub.
Evidence Base

Consensus of effectiveness of abating methane emissions from coal mines: High

There is a high level of consensus about the effectiveness of methane abatement strategies. These strategies can be deployed cost effectively in many cases and have an immediate impact on reducing global temperature rise. 

Authoritative sources such as the IEA (2024c) and UNEP (2021) agree that reducing methane emissions can noticeably slow global climate change. Methane is a short-lived climate pollutant that has a much stronger warming effect than CO₂ over a given time period. IEA (2023d) identified that close to 55% (22 Mt) of CMM emissions could be abated with existing technologies. However, there are significant challenges in measuring and recovering methane emissions in the coal sector. Analysis from Assan & Whittle (2023) found that global CMM emissions could be significantly higher than reported, 38–67 Mt/yr compared with the 40 Mt/yr reported by the IEA (2025).

The IEA (2023a) noted that more than half of CMM emissions could be abated through utilization, flaring, or oxidation technologies, with abatement being more practical for underground mines. Many studies (DeFabrizio et al., 2021; Malley et al., 2023; Shindell et al., 2024) have shown that methane abatement strategies can use existing technologies, often at low cost. In some countries, coal operators already identify the location and sources of CMM to meet health and safety regulations (Assan & Whittle, 2023); Setiawan & Wright (2024) noted that existing technologies such as pre-mine drainage and VAM mitigation have been proven in various places around the world over the past 25 years. According to UNEP (2021), coal methane abatement could reduce emissions by 12–25 Mt/yr, with up to 98% of the measures implemented at low cost. However, costs may vary significantly based on the available infrastructure and characteristics of an individual coal mine.

The results presented in this document summarize findings from 21 reviews and meta-analyses and 20 original studies reflecting current evidence from three countries (Australia, China, and the United States) as well as from sources examining global CMM emissions. We recognize this limited geographic scope creates bias, and hope this work inspires research and data sharing on this topic in underrepresented regions.

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Appendix

CMM abatement strategy constraints:

The type of coal mine, the amount of methane produced, and the available infrastructure greatly affect which abatement strategies are economical. Underground coal mines often produce more CMM and are likely to capture CMM using degasification systems and use it for productive purposes such as electricity generation or selling captured methane. However, VAM, which is a major part of CMM emissions, can be challenging to use for productive purposes due to the low methane concentrations. VAM requires regenerative thermal oxidation technology to effectively destroy and with more gassy coal mines. According to the IEA (2023b), technologies such as flaring and drained CMM can be used at less gassy mines with lower initial capital cost. Capturing methane for destruction has the disadvantage of not creating a source of revenue to offset the capital cost of methane abatement without a form of carbon markets in place. 

More than 60% of methane-related emissions from coal mining are from the ventilation of underground coal mines. Large amounts of fresh air are used to lower the concentration of methane and reduce the risk of explosions in underground mines. This makes it challenging to destroy or use the low concentrations of VAM (UNEP, 2022). It is also challenging to capture methane from surface mines because the coal is in direct contact with the atmosphere and over a larger surface area. However, thermal oxidation systems have been used to destroy VAM (U.S. EPA, 2019) and there have been examples of degasification systems used for surface mines as well (IEA, 2023b). Methane emissions from AMM can be dealt with by flooding underground mines with water (Kholod et al., 2020) or by sealing and using capture and utilization projects (Zhu et al., 2023). 

Technologies for reducing methane emissions can be divided between underground and surface coal mines:

Underground mines
  • Predainage prior to mining
  • VAM capture and utilization
  • Capture of abandoned mine gas
  • Sealing or flooding of abandoned mines 
Surface mines
  • Degasification of surface mines
  • Predrainage of surface mines

Appendix References

CNX. (2024, March 20). Jumpstarting coal mine methane capture projects for beneficial end use [PowerPoint slides].Global Methane Initiative. https://www.globalmethane.org/resources/details.aspx?resourceid=5386 

United Nations Economic Commission for Europe (UNECE). (2019). Best practice guidance for effective methane recovery and use from abandoned coal mines. https://unece.org/fileadmin/DAM/energy/images/CMM/CMM_CE/Best_Practice_Guidance_for_Effective_Methane_Recovery_and_Use_from_Abandoned_Coal_Mines_FINAL__with_covers_.pdf 

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Updated Date

Mobilize Electric Cars

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Summary

Electric cars are four-wheeled passenger cars that run on electricity, usually from the electricity grid and stored in onboard batteries (i.e., not including fuel cell electric cars). This definition includes electric pickup trucks, motorhomes, and other such vehicles. It does not include two-wheeled vehicles or hybrid cars (which combine an electric motor with a gasoline or diesel engine). It also does not include freight and commercial vehicles, such as electric heavy trucks, buses, and ambulances. We define Mobilizing Electric Cars as replacing fossil fuel–powered cars (i.e., those powered by internal combustion engines) with electric equivalents, as well as building out the necessary infrastructure (especially charging stations) to support them.

Overview

Electric cars provide the same functionality as fossil fuel–powered cars, but use electric motors rather than fuel-burning engines. The energy for the motors comes from an onboard battery, which is normally charged using electricity from the grid.

Electric cars have no direct tailpipe emissions, since electric motors do not burn fuel to function. The grid electricity used to charge their batteries may have come from fossil fuel-burning power plants, meaning electric cars are not entirely free of direct emissions. However, in most electrical grids, even those that mainly generate electricity from fossil fuels, electric cars usually still produce fewer emissions per pkm than fossil fuel–powered cars. This is for three reasons. First, large, fixed power plants and efficient electric grids can convert fossil fuels into useful energy more efficiently than smaller, mobile internal combustion engines in cars. In extreme cases, such as grids powered entirely by coal, this might not be the case, particularly if the grid has a lot of transmission and distribution losses. Second, the powertrain of an electric car delivers electricity from the battery to the wheels much more efficiently than the powertrain of a fossil fuel–powered car, which wastes much more energy as heat (International Transport Forum, 2020; Mofolasayo, 2023; Verma et al., 2022). Third, electric cars’ powertrains enable regenerative braking, where the kinetic energy of the car’s motion is put back into the battery when the driver brakes (Yang et al., 2024).

Electric cars reduce emissions of CO₂,  methane, and nitrous oxide to the atmosphere by replacing fuel-powered cars, which emit these gases from their tailpipes.

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Credits

Lead Fellow

  • Cameron Roberts, Ph.D.

Contributors

  • Ruthie Burrows, Ph.D.

  • James Gerber, Ph.D.

  • Daniel Jasper

  • Heather Jones, Ph.D.

  • Heather McDiarmid, Ph.D.

  • Alex Sweeney

Internal Reviewers

  • Aiyana Bodi

  • James Gerber, Ph.D.

  • Hannah Henkin

  • Jason Lam

  • Ted Otte

  • Amanda Smith, Ph.D.
Effectiveness

Every million pkm shifted from fossil fuel–powered cars to electric cars reduces 48.52 t CO₂‑eq on a 100-yr basis (Table 1), or 49.13 t CO₂‑eq on a 20-yr basis. 

We found this by collecting data on electricity consumption for a range of electric car models (Electric Vehicle Database, 2024) and multiplying it by the global average emissions per kWh of electricity generation. Fossil fuel–powered cars emit 115.3 t CO₂‑eq/pkm on a 100-yr basis (116.4 t CO₂‑eq/pkm on a 20-yr basis). Electric cars already have lower emissions in countries with large shares of renewable, nuclear, or hydropower generation in their electricity grids (International Transport Forum, 2020; Verma et al., 2022).

These data come disproportionately from North America and Europe, and, notably, leave out China, which has made major progress on electric cars in recent years and has many of its own makes and models. 

Electric cars today are disproportionately used in high- and upper-middle-income countries, whose electricity grids emit fewer GHG emissions than the global average per unit of electricity generated (IEA, 2024). Electric cars in use today reduce more emissions on average than the figure we have calculated. 

Electric cars have higher embodied emissions than fossil fuel–powered cars, due to the GHG-intensive process of manufacturing batteries. This gives them a carbon payback period which ranges from zero to over 10 years (Dillman et al., 2020; Ren et al., 2023).

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Table 1. Effectiveness at reducing emissions.

Unit: t CO₂‑eq/million pkm

25th percentile 38.95
mean 49.54
median (50th percentile) 48.52
75th percentile 62.82

Shifted from fossil fuel–powered cars to electric cars, 100-yr basis.

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Cost

Including purchase price, financing, fuel and electricity costs, maintenance costs, and insurance, electric cars cost on average US$0.05 less per pkm (US$49,442.19/million pkm) than fuel-powered cars. This is based on a population-weighted average of the cost differential between electric and fossil fuel–powered cars in seven countries: Japan, South Korea, China, the United States, France, Germany, and the United Kingdom (Nickel Institute, 2021b, 2021c, 2021a)

While this analysis found that electric cars are less expensive than fossil fuel–powered cars almost everywhere, the margin is often quite small. The difference is less than US$0.01/pkm (US$10,000/million pkm) in South Korea, the United States, and Germany. In some markets, electric cars are more expensive per pkm than fossil fuel–powered cars (IEA, 2022).

This amounts to savings of US$1,019/t CO₂‑eq on a 100-yr basis (Table 2), or US$1,006/t CO₂‑eq avoided emissions on a 20-yr basis). 

Our analysis does not include costs that are the same for both electric and fossil fuel–powered cars, including taxes, insurance costs, and public costs of building road infrastructure.

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Table 2. Cost per unit climate impact.

Unit: 2023 US$/t CO₂‑eq, 100-yr basis

median -1,019
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Learning Curve

For every doubling in electric car production, costs decline by approximately 23% (Table 3; Goetzel & Hasanuzzaman, 2022; Kittner et al., 2020; Weiss et al., 2015)

In addition to manufacturing improvements and economies of scale, this reflects rapid technological advancements in battery production, which is a significant cost component of an electric powertrain (Weiss et al., 2015).

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Table 3. Learning rate: drop in cost per doubling of the installed solution base.

Unit: %

25th percentile 23.00
mean 22.84
median (50th percentile) 23.00
75th percentile 24.00
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Speed of Action

Speed of action refers to how quickly a climate solution physically affects the atmosphere after it is deployed. This is different from speed of deployment, which is the pace at which solutions are adopted.

At Project Drawdown, we define the speed of action for each climate solution as gradualemergency brake, or delayed.

Mobilize Electric Cars is a GRADUAL climate solution. It has a steady, linear impact on the atmosphere. The cumulative effect over time builds as a straight line.

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Caveats

The effectiveness of electric cars in mitigating GHG emissions is critically dependent on the emissions associated with electricity production. In electricity grids dominated by fossil fuels, electric cars have far higher emissions than in jurisdictions with low-emission electricity generation (International Transport Forum, 2020; IPCC, 2022; Milovanoff et al., 2020).

Electric car adoption faces a major obstacle in the form of constraints on battery production. While electric car battery production is being aggressively upscaled (IEA, 2024), building enough batteries to replace a significant fraction of fossil fuel–powered cars is an enormous challenge and will likely slow down a transition to electric cars, even if there is very high consumer demand (Milovanoff et al., 2020)

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Current Adoption

Approximately 28 million electric cars are in use worldwide (IEA, 2024). This corresponds to about 819,000 million pkm traveled by electric car worldwide each year (Table 4). We assume that all of this travel would be undertaken by a fossil fuel–powered car if the car’s occupants did not use an electric car. Adoption is much higher in some countries, such as Norway, where the share of electric cars was 29% in 2023.

To convert the IEA’s electric car estimates into pkm traveled, we needed to determine the average passenger-distance that each passenger car travels per year. Using population-weighted data from several different countries, the average car carries 1.5 people and travels an average of 29,250 pkm/yr. Multiplying this number by the number of electric cars in use gives the total travel distance shift from fossil fuel–powered cars to electric cars.

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Table 4. Current (2024) adoption level.

Unit: million pkm/yr

Population-weighted mean 818,900

Implied travel shift from fossil fuel-powered cars to electric cars.

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Adoption Trend

Globally, about 104 billion pkm are displaced from fossil fuel–powered cars by electric cars every year (Table 5). The number of new electric cars purchased each year is growing at an average rate of over 10% (Bloomberg New Energy Finance, 2024; IEA, 2024), although purchase rates have declined slightly from record highs between 2020–2022. Global purchases of electric cars are still increasing by around 3.6 million cars/yr. This is based on globally representative data (Bloomberg New Energy Finance, 2024; IEA, 2024).

Despite this impressive rate of growth, electric cars still have a long way to go before they replace a large percentage of the more than 2 billion cars currently driven (WHO, 2024).

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Table 5. 2023-2024 adoption trend.

Unit: million pkm/yr

Median, or population-weighted mean 104,000

Implied travel shift from fossil fuel-powered cars to electric cars.

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Adoption Ceiling

The adoption ceiling for electric cars is equal to the total passenger-distance driven by the more than 2 billion cars worldwide (WHO, 2024). Using a population-weighted mean of the average distance (in pkm) traveled per car annually, this translates to about 59 trillion pkm (Table 6).

Replacing every single fossil fuel–powered car with an electric car would require an enormous upscaling of electric car production capacity, rapid development of charging infrastructure, cost reductions to increase affordability, and technological improvements to improve suitability for more kinds of drivers and trips. It would also face cultural obstacles from drivers who are attached to fossil fuel–powered cars (Roberts, 2022).

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Table 6. Adoption ceiling.

Unit: million pkm/yr

Median, or population-weighted mean 59,140,000

Implied travel shift from fossil fuel-powered cars to electric cars.

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Achievable Adoption

The achievable adoption of electric car travel ranges from about 26–47 trillion pkm displaced from fossil fuel–powered cars (Table 7).

Various organizations have produced forecasts for electric car adoption. These are not assessments of feasible adoption per se; they are instead trying to predict likely rates of adoption, given various assumptions about the future (Bloomberg New Energy Finance, 2024; IEA, 2024). However, they are useful in that they take a large number of different variables into account to make their estimates. To convert these estimates of future likely adoption into estimates of the achievable adoption range, we apply some assumptions to the numbers in the scenario projections. 

To find a high rate of electric car adoption, we assume that every country could reach the highest rate of adoption projected to occur for any country. Bloomberg New Energy Finance’s (2024) Economic Transition scenario predicts that Norway will reach an 80% electric vehicle stock share by 2040. We therefore set our high adoption rate at 80% worldwide. This corresponds to 1,617 million total electric cars in use, or 47 trillion pkm traveled by electric car. An important caveat is that with a global supply constraint in the production of electric car batteries, per-country adoption rates are somewhat zero-sum. Every electric car purchased in Norway is one that cannot be purchased elsewhere. Therefore, for the whole world to achieve an 80% electric car stock share, global electric car and battery production would have to increase radically. While this might be possible due to technological improvements or radical increases in investment, it should not be taken for granted.

To identify a lower feasible rate of electric car adoption, we simply take the highest estimate for global electric car adoption. Bloomberg’s Economic Transition scenario predicts 44% global electric car adoption by 2050. This corresponds to 890 million electric cars, or 26 trillion pkm.

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Table 7. Range of achievable adoption levels.

Unit: million pkm/yr.

Current Adoption 818,900
Achievable – Low 26,020,000
Achievable – High 47,310,000
Adoption ceiling (physical limit) 59,140,000
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Electric cars are currently displacing 0.040 Gt CO₂‑eq of GHG emissions from the transportation system on a 20-yr basis (Table 8), or 0.040 Gt CO₂‑eq on a 100-yr basis. 

If electric cars reach 44% of the global car stock share by 2040, as Bloomberg (2024) projects, without any change in the total number of cars on the road, they will displace 1.263 Gt CO₂‑eq GHG emissions on a 100-yr basis (1.279 Gt CO₂‑eq  on a 20-yr basis).

If electric cars globally reach 80% of car stock share, as Bloomberg projects might happen in Norway by 2040, they will displace 2.296 Gt CO₂‑eq GHG emissions on a 100-yr basis (2.325 Gt CO₂‑eq on a 20-yr basis).

If electric cars replace 100% of the global car fleet, they will displace 2.870 Gt CO₂‑eq  GHG emissions on a 100-yr basis (2.906 Gt CO₂‑eq on a 20-yr basis).

These numbers are based on the present-day average emissions intensity from electrical grids in countries with high rates of electric car adoption. If more clean energy is deployed on electricity grids, the total climate impact from electric cars will increase considerably.

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Table 8. Climate impact at different levels of adoption.

Unit: Gt CO₂‑eq/yr, 100-yr basis

Current Adoption 0.040
Achievable – Low 1.263
Achievable – High 2.296
Adoption ceiling (physical limit) 2.870
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Additional Benefits

Air Quality

The adoption of electric cars reduces emissions of air pollutants, including sulfur oxidessulfur dioxide, and nitrous oxides, and especially carbon monoxide and volatile organic compounds. It has a smaller impact on particulate emissions (Requia et al., 2018). Some air pollution reductions are limited (particularly PM and ozone) due to heavier electric cars and pollution from brakes, tires, and wear on the batteries (Carey, 2023; Jones, 2019).

Water Quality

Substituting electric car charging points for gas stations can eliminate soil and water pollution from leaking underground gas tanks (Yoder, 2023)

Health

Since electric cars do not have tailpipe emissions, they can mitigate traffic-related air pollution, which is associated with asthma, lung cancer, increased emergency department visits for respiratory disease, and increased mortality (Anenberg et al., 2019; Guarnieri & Balmes, 2014; Pan et al., 2023; Pennington et al., 2024; Requia et al., 2018; Szyszkowicz et al., 2018). Transitioning to electric cars can reduce exposure to air pollution, improve health, and prevent premature mortality (Garcia et al., 2023; Larson et al., 2021; Peters et al., 2020).

The health benefits of adopting electric cars vary spatially and partly depend upon how communities generate electricity (Choma et al., 2020), but there is evidence that they have improved health. A study in California found a reduction in emergency department visits in ZIP codes with an increase in zero-emissions cars (Garcia et al., 2023). By 2050, projections estimate that about 64,000–167,000 deaths could be avoided by adopting electric cars (Larson et al., 2021).

Communities rich in racial and ethnic minorities tend to be located near highways and major traffic corridors and so are disproportionately exposed to air pollution (Kerr et al., 2021). Transitioning to electric cars could improve health in marginalized urban neighborhoods that are located near highways, industry, or ports (Pennington et al., 2024). These benefits depend upon an equitable distribution of electric cars and infrastructure to support the adoption of electric cars (Garcia et al., 2023). Low-income households may not see the same savings from an electric car due to the cost and stability of electricity prices and distance to essential services (Vega-Perkins et al., 2023)

Income & Work

Adopting electric cars can reduce a household’s energy burden, or the proportion of income spent on residential energy (Vega-Perkins et al., 2023). About 90% of United States households that use a car could see a reduction in energy burden by transitioning to an electric car. Money spent to charge electric cars is more likely to stay closer to the local community where electricity is generated, whereas money spent on fossil fuels often benefits oil-producing regions. This benefits local and national economies by improving their trade balance (Melaina et al., 2016).

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Risks

Mining minerals necessary to produce electric car batteries carries environmental and social risks. This has been associated with significant harms, particularly in lower-income countries that supply many of these minerals (Agusdinata et al., 2018; Sovacool, 2019).

Electric cars might also pose additional safety risks due to their higher weight, which means they have longer stopping distances and can cause more significant damage in collisions and to pedestrians and cyclists (Jones, 2019). This risk includes dual-motor electric cars that incorporate two electric motors – one for the front axle and one for the rear – providing all-wheel drive (AWD) capabilities. The addition of a second motor increases the vehicle's weight and complexity, which can lead to higher energy consumption and reduced overall efficiency. Moreover, the increased manufacturing costs associated with dual-motor systems can result in higher purchase prices for consumers (Nguyen et al., 2023). However, this configuration enhances vehicle performance, offering improved acceleration, traction, and handling, particularly in adverse weather conditions which are valued by some consumers. 

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Interactions with Other Solutions

Reinforcing

Electric car batteries can potentially be used as stationary batteries for use as energy storage to balance electrical grids, either through vehicle-to-grid (V2G) technology or with degraded electric car batteries being installed in stationary battery farms as a form of reuse (Ravi & Aziz, 2022)

The effectiveness of electric cars in reducing GHG emissions increases as electricity grids become cleaner, since lower-carbon electricity further reduces the emissions associated with car charging. 

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Competing

Electric cars compete with heat pumps for electricity. Installing both heat pumps and electric cars could strain the electric grid’s capacity (Fakhrooeian et al., 2024).

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Scaling up the production of electric cars requires more mining of critical minerals, which could affect ecosystems that are valuable carbon sinks (Agusdinata et al., 2018).

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Getting travelers onto bicycles, sidewalks, public transit networks, or smaller electric vehicles (such as electric bicycles) provides a greater climate benefit than getting them into electric cars. There is an opportunity cost to deploying electric cars because those resources could otherwise be used to support these more effective solutions (APEC, 2024).

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Dashboard

Solution Basics

1 million passenger-kilometers

t CO₂-eq/unit
48.52
units/yr
Current 818,9002.6×10⁷4.73×10⁷
Achievable (Low to High)

Climate Impact

Gt CO₂-eq/yr
Current 0.04 1.262.3
US$ per t CO₂-eq
-1,019
Gradual

CO₂, CH₄, N₂O

Trade-offs

Electric car batteries are currently quite emissions-intensive to produce, resulting in high embodied emissions. While the embodied emissions are higher for electric cars than fossil fuel–powered cars, the results are mixed when coupling these with operating emissions. Dillman et al.’s (2020) review of the literature on this topic found that producing the average battery-electric car emits 63% more GHG emissions than the average gasoline-powered car, and 77% more GHG emissions than the average diesel-powered car. Taking their lower tailpipe emissions into account, this gives them a GHG payback period of zero to more than 10 years. In some cases, the emissions payback period is longer than the expected lifespan of the electric car, meaning it will have higher life cycle GHG emissions than a comparable gasoline or diesel-powered car. However, the ITF (2020) found that the lifetime emissions from manufacturing, operation, and infrastructure are lower for electric cars. All of these studies relied on assumptions, including the type of car, size of battery, electricity grid, km/yr, and lifetime. 

There is some criticism against any solution that advocates for car ownership, contending that the focus should be on solutions such as Enhance Public Transit that reduce car ownership and usage. Jones (2019) noted “there is little evidence to suggest that EVs can offer the universal solution that global governments are seeking,” and that efforts to popularize electric cars “may be better directed at creating more efficient public transport systems, rather than supporting personal transportation, if the significant health disbenefits of car use during the past 150 years are to be in any way reduced.”

Milovanoff et al. (2020) offered similar criticism: “Closing the mitigation gap solely with EVs would require more than 350 million on-road EVs (90% of the fleet), half of national electricity demand, and excessive amounts of critical materials to be deployed in 2050. Improving [the] average fuel consumption of fossil fuel–powered vehicles, with stringent standards and weight control, would reduce the requirement for alternative technologies, but is unlikely to fully bridge the mitigation gap. There is therefore a need for a wide range of policies that include measures to reduce vehicle ownership and usage.”

Allocating the limited global battery supply to privately owned electric cars might undermine the deployment of other solutions that also require batteries, but are more effective at avoiding GHG emissions (Castelvecchi, 2021). These could include electric buses, electric rail, and electric bicycles.

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Mt CO2-eq
0–4
4–8
8–12
12–16
16–20
> 20
No data

Annual road transportation emissions, 2024

Cars are the largest source of vehicle emissions, which are shown here for urban areas.

Kott, T., Foster, K., Villafane-Delgado, M., Loschen, W., Sicurello, P., Ghebreselassie, M., Reilly, E., and Hughes, M. (2024). Transportation sector - Global road emissions. [Data set]. The Johns Hopkins University Applied Physics Laboratory (JHU/APL), Climate TRACE Emissions Inventory. Retrieved March 12, 2025 from https://climatetrace.org

Mt CO2-eq
0–4
4–8
8–12
12–16
16–20
> 20
No data

Annual road transportation emissions, 2024

Cars are the largest source of vehicle emissions, which are shown here for urban areas.

Kott, T., Foster, K., Villafane-Delgado, M., Loschen, W., Sicurello, P., Ghebreselassie, M., Reilly, E., and Hughes, M. (2024). Transportation sector - Global road emissions. [Data set]. The Johns Hopkins University Applied Physics Laboratory (JHU/APL), Climate TRACE Emissions Inventory. Retrieved March 12, 2025 from https://climatetrace.org

Geographic Guidance Introduction

Electric cars can effectively mitigate climate change in all geographic regions, although there is spatial variability that influences per-pkm effectiveness and potential solution uptake. Effectiveness heavily depends on the carbon intensity of the charging source, which varies greatly between and within countries. The effectiveness of electric cars decreases for larger vehicles, favored in some countries (Jones, 2019; Nguyen et al., 2023).  

The uptake of electric cars can be significantly influenced by socioeconomic factors, including the relative costs of fuels and electricity, the capacity of civil society to provide adequate charging infrastructure, and the availability of subsidies for electric vehicles.

Extreme temperatures can negatively impact vehicle range, both by slowing battery chemistry and increasing energy demands for regulating passenger compartment temperature, which can adversely affect consumers’ perceptions of electric car suitability in locations with such climates (International Council on Clean Transportation, 2024).

Electric cars are most effective in regions with low-carbon electricity grids (International Transport Forum, 2020; Verma et al., 2022). This includes countries with high hydro power (including Iceland, Norway, Sweden, and parts of Canada such as British Columbia and Quebec), nuclear energy (such as France), and renewables (including Portugal, New Zealand, and parts of the United States, including California and some of the Northwest) (IEA, 2024). Electric car adoption is growing rapidly in a number of regions. For future scaling, targeting countries with supportive policies, renewable energy potential, and growing urban populations will deliver the greatest climate benefits.

Action Word
Mobilize
Solution Title
Electric Cars
Classification
Highly Recommended
Lawmakers and Policymakers
  • Create government procurement policies to transition government fleets to electric cars.
  • Provide financial incentives such as tax breaks, subsidies, or grants for electric car production and purchases that gradually reduce as market adoption increases.
  • Provide complimentary benefits for electric car drivers, such as privileged parking areas, free tolls, and access schemes.
  • Use targeted financial incentives to assist low-income communities in purchasing electric cars and to incentivize manufacturers to produce more affordable options.
  • Develop charging infrastructure, ensuring adequate spacing between stations and equitable distribution of stations.
  • Invest in R&D or implement regulations to improve manufacturing, adoption, supply chain standards, and circularity of electric cars, particularly batteries.
  • Transition fossil fuel electricity production to renewables while promoting the transition to electric cars.
  • Disincentivize fossil fuel–powered car ownership by gradually introducing taxes, penalties, buy-back programs, or other mechanisms.
  • Offer educational resources and one-stop shops for information on electric vehicles, including demonstrations, cost savings, environmental impact, and maintenance.
  • Work with industry and labor leaders to construct new electric car plants and to transition fossil fuel–powered car manufacturing into electric car production.
  • Set regulations for sustainable use of electric car batteries and improve recycling infrastructure.
  • Join international efforts to promote and ensure that environmental and human rights standards are met for supply chains.
  • Incentivize or mandate life-cycle assessments and product labeling (e.g., Environmental Product Declarations).
  • Create, support, or join partnerships that offer information, training, and general support for electric car adoption.

Further information:

Practitioners
  • Produce and sell affordable electric car models.
  • Collaborate with dealers to provide incentives, low-interest financing, or income-based payment options.
  • Develop charging infrastructure, ensuring adequate spacing between stations and equitable distribution of stations.
  • Invest in R&D to improve manufacturing, adoption, supply chain standards, and circularity of electric cars, particularly batteries.
  • Offer educational resources and one-stop shops for information on electric cars, including demonstrations, cost savings, environmental impact, and maintenance.
  • Work with policymakers and labor leaders to construct new electric car plants and to transition fossil fuel–powered car manufacturing into electric car production.
  • Join international efforts to promote and ensure that environmental and human rights standards are met for supply chains.
  • Invest in recycling and circular economy infrastructure.
  • Conduct life-cycle assessments and ensure product labeling (e.g., Environmental Product Declarations).
  • Create, support, or join partnerships that offer information, training, and general support for electric car adoption.

Further information:

Business Leaders
  • Set company procurement policies to transition corporate fleets to electric cars.
  • Take advantage of any financial incentives such as tax breaks, subsidies, or grants for electric car purchases.
  • Create long-term purchasing agreements with electric car manufacturers to support stable demand and improve economies of scale.
  • Install charging stations and offer employee benefits for electric car drivers, such as privileged parking areas.
  • Invest in R&D to improve manufacturing, adoption, supply chain standards, and circularity of electric cars, particularly batteries.
  • Work with industry and labor leaders to transition fossil fuel–powered car manufacturing into electric car production.
  • Advocate for financial incentives and policies that promote electric car adoption.
  • Join international efforts to promote and ensure that environmental and human rights standards are met for supply chains.
  • Educate customers and investors about the company's transition to electric cars and encourage them to learn more about them.
  • Create, support, or join partnerships that offer information, training, and general support for electric car adoption.

Further information:

Nonprofit Leaders
  • Set organizational procurement policies to transition fleets to electric cars.
  • Take advantage of financial incentives such as tax breaks, subsidies, or grants for electric car purchases.
  • Advocate for financial incentives and policies that promote electric car adoption.
  • Install charging stations and offer employee benefits for electric car drivers, such as privileged parking areas.
  • Advocate for or provide improved charging infrastructure.
  • Offer workshops or support to low-income communities for purchasing and owning electric cars.
  • Work with industry and labor leaders to transition fossil fuel–powered car manufacturing into electric car production.
  • Join international efforts to promote and ensure that environmental and human rights standards are met for supply chains.
  • Advocate for regulations on lithium-ion batteries and investments in recycling facilities.
  • Offer educational resources and one-stop shops for information on electric cars, including demonstrations, cost savings, environmental impact, and maintenance.
  • Create, support, or join partnerships that offer information, training, and general support for electric car adoption.

Further information:

Investors
  • Invest in electric car companies.
  • Support portfolio companies in transitioning their corporate fleets.
  • Invest in companies that provide charging equipment or installation.
  • Invest in R&D to improve manufacturing, adoption, supply chain standards, and circularity of electric cars, particularly batteries.
  • Invest in electric car companies, associated supply chains, and end-user businesses like rideshare apps.
  • Join international efforts to promote and ensure that environmental and human rights standards are met for supply chains.
  • Create, support, or join partnerships that offer information, training, and general support for electric car adoption. 

Further information:

Philanthropists and International Aid Agencies
  • Set organizational procurement policies to transition fleets to electric cars.
  • Install charging stations and offer employee benefits for electric car drivers, such as privileged parking areas.
  • Take advantage of any financial incentives such as tax breaks, subsidies, or grants for electric car purchases.
  • Advocate for financial incentives and policies that promote electric car adoption.
  • Advocate for or provide improved charging infrastructure.
  • Offer financial services such as low-interest loans or grants for purchasing electric cars and charging equipment.
  • Offer workshops or support to low-income communities for purchasing and owning electric cars.
  • Work with industry and labor leaders to transition fossil fuel–powered car manufacturing into electric car production.
  • Join international efforts to promote and ensure that environmental and human rights standards are met for supply chains.
  • Advocate for regulations on lithium-ion batteries and investments in recycling facilities.
  • Offer educational resources and one-stop shops for information on electric cars, including demonstrations, cost savings, environmental impact, and maintenance.
  • Create, support, or join partnerships that offer information, training, and general support for electric car adoption.

Further information:

Thought Leaders
  • If purchasing a new car, buy an electric car.
  • Take advantage of financial incentives such as tax breaks, subsidies, or grants for electric car purchases.
  • Share your experiences with electric cars through social media and peer-to-peer networks, highlighting the cost savings, benefits, incentive programs, and troubleshooting tips.
  • Advocate for financial incentives and policies that promote electric car adoption.
  • Advocate for improved charging infrastructure.
  • Help improve the circularity of electric car supply chains through design, advocacy, or implementation.
  • Conduct in-depth life-cycle assessments of electric cars in particular geographies.
  • Research ways to reduce weight and improve the performance of electric cars while appealing to customers.
  • Join international efforts to promote and ensure that environmental and human rights standards are met for supply chains.
  • Create, support, or join partnerships that offer information, training, and general support for electric car adoption.

Further information:

Technologists and Researchers
  • Improve the circularity of supply chains for electric car components.
  • Reduce the amount of critical minerals required for electric car batteries.
  • Innovate low-cost methods to improve safety, labor standards, and supply chains in mining for critical minerals.
  • Research ways to reduce weight and improve the performance of electric cars while appealing to customers.
  • Develop vehicle-grid integration and feasible means of using the electrical capacity of electric cars to manage the broader grid.
  • Improve techniques to repurpose used electric car batteries for stationary energy storage.
  • Develop methods of converting fossil fuel–powered car manufacturing and infrastructure to electric.

Further information:

Communities, Households, and Individuals
  • If purchasing a new car, purchase an electric car.
  • Take advantage of any financial incentives such as tax breaks, subsidies, or grants for electric car purchases.
  • Share your experiences with electric cars through social media and peer-to-peer networks, highlighting the cost-savings, benefits, incentive programs, and troubleshooting tips.
  • Help shift the narrative around electric cars by demonstrating capability and performance.
  • Advocate for financial incentives and policies that promote electric car adoption.
  • Advocate for improved charging infrastructure.
  • Help improve ciricularity of electric car supply chains.
  • Join international efforts to promote and ensure that environmental and human rights standards are met for supply chains.
  • Create, support, or join partnerships that offer information, training, and general support for electric car adoption.

Further information:

Sources
Evidence Base

Consensus of effectiveness in reducing emissions: Mixed

There is a high level of consensus among major organizations and researchers working on climate solutions that electric cars offer a substantial reduction in GHG emissions compared to fossil fuel–powered cars. This advantage is strongest in places where electricity in the grid comes from sources with low GHG emissions, but it persists even if fossil fuels play a major role in energy production. 

Major climate research organizations generally see electric cars as the primary means of reducing GHG emissions from passenger transportation. This perspective has received criticism from some scholars who argue that electric cars have been overstated as a climate solution, pointing to supply constraints, embodied emissions, and emissions from electricity generation (Jones, 2019; Milovanoff et al., 2020). Embodied emissions are outside the scope of this assessment. 

The Intergovernmental Panel on Climate Change (IPCC) (2022) estimated well-to-wheel (upstream and downstream emissions) GHG emissions intensity from gasoline and diesel cars at 139 g CO₂‑eq/pkm and 107 g CO₂‑eq/pkm, respectively. They estimated that electric cars running on low-carbon electricity (solar, wind, and nuclear sourced) emit 9 g CO₂‑eq/pkm; electric cars running on natural gas electricity emit 104 g CO₂‑eq/pkm; and electric cars running entirely on coal electricity emit 187 g CO₂‑eq/pkm. These estimates include upstream emissions, such as those from oil refining and coal mining.

The International Energy Agency (IEA, 2024) noted that “[a] battery electric car sold in 2023 will emit half as much as fossil fuel–powered equivalents over its lifetime. This includes full life-cycle emissions, including those from producing the car.” 

The International Transport Forum (ITF) (2020) estimated that fossil fuel–powered cars emit 162 g CO₂‑eq/pkm, while electric cars emit 125 g CO₂‑eq/pkm. This included embodied and upstream emissions, which are outside the scope of this assessment..

The results presented in this document summarize findings from 15 reviews and meta-analyses and 24 original studies reflecting current evidence from 52 countries, primarily the IEA’s Electric Vehicle Outlook 2024), the Electric Vehicle Database 2024), the International Transportation Forum’s life cycle analysis on sustainable transportation 2020), the Nickel Institute’s cost estimates on electric cars (Nickel Institute, 2021b, 2021c, 2021a). We recognize this limited geographic scope creates bias, and hope this work inspires research and data sharing on this topic in underrepresented regions.

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