Overwhelming scientific consensus has shown that without deep and rapid reductions in greenhouse gas emissions, global warming will exceed 1.5 degrees Celsius, a level beyond which will bring catastrophic damage around the world. John Fleming, Ph.D., a Senior Scientist with the Center for Biological Diversity in its Climate Law Institute, will discuss his scientific work to support legal and grassroots campaigns to protect people, wildlife, and ecosystems from climate change while working to speed the transition from greenhouse gas-emitting fossil fuels to clean, renewable energy sources.