What is our assessment?

Based on our analysis, improving fuel-burning cooking equipment is an important strategy for reducing GHG emissions from stoves and unsustainable wood harvesting, especially in low-income countries where the additional social and health benefits are significant. However, the lack of quantitative data on the emissions impacts precludes a full analysis. We will “Keep Watching” this potential climate solution. 

What is it?

Improved fuel-burning cooking equipment reduces emissions from combustion and unsustainable biomass harvesting by switching to more efficient cooking equipment or cooking equipment that burn cleaner fuels. In many countries around the world, it is common to cook meals over open fires with solid fuels such as wood, charcoal, dung, and coal or over kerosene stoves Cooking using solid fuels occurs mainly in low-income countries and in rural areas, with one report estimating that 84% of people in sub-Saharan Africa lacked cleaner cooking solutions in 2020 (Stoner et al., 2021). Improved fuel-burning cooking equipment includes more efficient cookstoves and stoves that use cleaner fuels such as liquid petroleum gas, natural gas, biogas, and alcohol. Use of such equipment reduces emissions from combustion and unsustainable biomass harvesting (International Energy Agency [IEA], 2023). Improving fuel-burning cooking equipment is widely seen as a stepping stone toward cooking with electricity in regions lacking reliable and affordable access to electricity (Couture & Jacobs, 2019). Solar-powered cookstoves are not included here, and shifting to electric cooking is addressed in Deploy Electric Cooking Equipment. 

Does it work?

Improved fuel-burning cooking equipment is widely available, is proven to reduce GHG emissions, and can reduce unsustainable biomass harvesting. This is because cleaner fuels are less carbon intensive and make the cooking equipment more energy efficient, resulting in less emissions per unit of heat delivered (Johnson, 2009; Khavari et al., 2023). Meanwhile, more efficient solid-fuel cookstoves can reduce fuel usage by 25-40% (MacCarty et al., 2010). Using less biomass for cooking also means less unsustainable wood harvesting that can lead to deforestation (Bailis et al., 2015). The IEA (2023) estimates that 0.8 Gt CO₂‑eq/yr could be avoided by 2030 if all households cooked with cleaner cooking fuels or electricity, and a similar amount of emissions could be prevented by avoiding deforestation. 

Why are we excited?

Improving fuel-burning cooking equipment is a low-cost climate solution that has had high rates of adoption in some countries driven in part by the significant additional benefits. Most improved cooking equipment has up-front costs of less than $US100 (Modern Energy Cooking Services & Energy 4 Impact 2021), and there can be operational cost savings because the new equipment is more fuel efficient. China, India, and Indonesia saw 2–4% of their populations gain access to cleaner cooking technologies (including electric appliances) each year between 2010 and 2022 (IEA, 2023), highlighting how adoption can grow with supportive policies and funding. 

Improved cooking equipment provides numerous social benefits. The World Health Organization (2024) estimated that 2.9 million premature deaths occur per year from household air pollution, and inefficient cooking contributes to that. The World Bank (2020) estimated that cooking with solid fuels and kerosene causes US$1.4 trillion/yr in negative health impacts, mainly to women and girls. Women and girls also may be vulnerable to violence and assault when collecting biomass fuel. The IEA (2023) estimates that an average of 5 hours a day are spent on collecting biomass and cooking in some regions when inefficient cooking methods are used, time that might otherwise be spent on schooling or additional employment. Finally, biodiversity loss and deforestation are reduced when less biomass is used for cooking (Pearson et al., 2017). 

Why are we concerned?

Adoption of improved fuel-burning cooking equipment is held back by cost and cultural barriers, while lack of data hinders emissions impact analyses. Despite being low cost, improved fuel-burning cooking equipment and their fuels are financially inaccessible to many households in low-income countries, including half of households in sub-Saharan Africa (World Bank, 2020). Households using improved cooking equipment may revert to old equipment if fuel becomes unaffordable or cookstoves do not support traditional cooking practices (Jewitt et al., 2020). Finally, the full potential of this solution to reduce emissions cannot be assessed due to a lack of studies specific to improvements to fuel-burning equipment and the types of GHGs involved.