Ruth DeFries is a professor of ecology and sustainable development at Columbia University in New York. She uses images from satellites and field surveys to examine how the world’s demands for food and other resources are changing land use throughout the tropics. Her research quantifies how these land use changes affect climate, biodiversity and other ecosystem services, as well as human development.
Howard Frumkin is Dean, and Professor of Environmental and Occupational Health Sciences, at the University of Washington School of Public Health. Dr. Frumkin is an internist, environmental and occupational medicine specialist, and epidemiologist, who has worked in academia and public service.
Richard Ostfeld is Senior Scientist at the Cary Institute of Ecosystem Studies, a not-for-profit research institution in Millbrook, New York, dedicated to providing the science behind environmental solutions. His research focuses on ecological determinants of human risk of exposure to infectious diseases, emphasizing Lyme and other tick-borne diseases.
Daniel Schrag is the Sturgis Hooper Professor of Geology, Professor of Environmental Science and Engineering at Harvard University, and Director of the Harvard University Center for the Environment. Dan’s interests include climate change, energy technology, and energy policy.