Georgia Athletic Association Distinguished Professor of Atmospheric Sciences and Geography, University of Georgia

Shepherd is a leading international expert in weather and climate and the Georgia Athletic Association Distinguished Professor of Atmospheric Sciences and Geography at the University of Georgia. He is the host of The Weather Channel’s award-winning Sunday talk show and podcast Weather Geeks, and a contributor to Forbes Magazine. Shepherd is a former NASA scientist and winner of numerous awards, including the prestigious AMS Helmut Landsberg Award for pioneering significant work in urban climate. Shepherd is frequently sought as an expert on weather, climate, and remote sensing—he routinely appears on leading broadcast programs around the world. Follow him on Twitter and visit his website.

Hear more about equitable climate action in Unit 1, which covers 50 years of stunning change—from food demand, water, population, ocean health, and beyond.

Professor and Canada Research Chair in Global Environmental Change and Food Security, University of British Columbia

Ramankutty, a professor and research chair at the University of British Columbia, leads a program that explores how humans use and modify the Earth’s land surface for agriculture—and how that implicates our global environment. Using research observations and numerical ecosystem models, he aims to find solutions to the problem of feeding humanity with minimal global environmental footprint. Ramankutty—a Leopold Leadership Fellow—contributed to the Millennium Ecosystem Assessment report and to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, and currently serves as Associate Editor of Environmental Research Letters. Follow Ramankutty on Twitter and visit his website.

Hear more about the sources of greenhouse gas emissions in Unit 2, which covers three need-to-know principles of equitable climate solutions.

Angel investor, clean energy advocate, award-winning author

Naam is a pioneering thought leader focused on climate and energy, speaking frequently on the inevitability and increasing price advantage of clean energy. He serves as advisor and investor to clean energy, mobility, and climate-related startups around the world. Born in Cairo, Egypt before moving to the U.S. at age three, Naam began his career at Microsoft before moving on to work on clean energy and climate change. Naam has written five books, including the nonfiction bestseller The Infinite Resource: The Power of Ideas on a Finite Planet. Follow him on Twitter and visit his website.

Hear more about fascinating energy solutions in Unit 5, which outlines clear paths to safe, equitable, and comprehensive climate action. 

Director of the Institute on the Environment, University of Minnesota

Hellmann is the director of the University of Minnesota’s Institute on the Environment and the Ecolab Chair in Environmental Leadership, where she works to build a future where people and planet prosper together. Her research focuses on global change ecology, climate adaptation, and the reduction of greenhouse gas emissions. Widely published and a skilled communicator, Hellmann is a scientific pioneer routinely called upon by leading international media outlets to provide expert input on global change. In addition to several prestigious fellowship positions, she received the Climate Adaptation Leadership Award of the US Association of Fish and Wildlife Agencies. Follow Hellmann on Twitter, visit her website, and read her blog Director’s Almanac.

Hear more about ecosystem impacts in Unit 4, which digs into carbon sinks—and ways to keep them strong—around the world.

Mary Laird Professor and Dean of the College of the Environment, University of Washington

Graumlich is the Mary Laird Wood Professor and inaugural dean of the College of the Environment at the University of Washington. As dean, she leads a College with unparalleled depth and breadth in environmental systems: from the forests to the seas, and from the center of the earth to the edges of the solar system. As a scholar, Graumlich pioneered the use of tree-ring data to understand long-term trends in climate. She has held several faculty positions, fellowships, and directorships, and was elected to both the Board of Directors and presidency of the American Geophysical Union (AGU). Follow Graumlich on Twitter and visit her online.

Hear more about privilege, race, and economics in Unit 1, which explores the last 50 years of stunning change as context for our current climate inflection point. 

Executive Director, Project Drawdown

Foley – host of Climate Solutions 101 – is a world-renowned environmental scientist, sustainability expert, author, and public speaker. As Director of Project Drawdown, he focuses on understanding our changing planet, and finding new solutions to sustain the climate, ecosystems, and natural resources we all depend on. Prior to joining the organization, Foley led the California Academy of Sciences – the greenest museum on Earth – and dedicated 15 years at the University of Wisconsin, where he founded the Center for Sustainability and the Global Environment. An award-winning scientist and author on numerous scientific papers, he is also committed to mentoring young scientists and bringing a message of possibility and change to scientific and lay audiences alike. Follow him on Twitter, visit Project Drawdown’s website, and read his posts on Medium.

Explore this wide-ranging video course with Foley as your co-pilot. Start with Unit 1, now.

Full Professor, Federal University of Viçosa

Costa has dedicated his career to geosciences, with a special emphasis on climatology. From the study of large-scale hydrology to micrometeorology, Costa is fascinated by the interactions between Earth’s air, land, and water. He earned his B.A. and M.S. from Brazil’s University Federal of Viçosa, and his doctorate in atmospheric and ocean sciences from the University of Wisconsin-Madison. Today, Costa is a full professor at his alma mater, the Federal University of Viçosa. Visit him online.

Hear more about the sources of greenhouse gas emissions in Unit 3, which brings the path to a safer, low-carbon economy into sharper relief. 

Former Fellow for Transportation and Buildings, Project Drawdown

Allard advances solutions to the climate challenge by sharing his broad knowledge of transportation systems and their impact on our climate. His specialties include: sustainable transport, passenger intermodality, intercity transport, competitive issues in transportation, and cooperation among transportation systems. Beyond these topics, Allard has published peer-reviewed research and presented at international conferences on transport solutions to reduce climate change, and on mass transit, high-speed rail, car-driver support technologies, and systems design that encourages socially optimum behavior. Prior to joining Project Drawdown, Allard earned degrees from the Massachusetts Institute of Technology as well as the University of Lisbon in Portugal. Follow him on Twitter and LinkedIn.

Hear more about transportation and emissions sources in Unit 3, which covers the biggest slices of the global emissions pie.