Nigel Purvis is the founder, President and CEO of Climate Advisers, a Washington, DC-based consultancy specializing in U.S. climate change policy, international climate change cooperation, global carbon markets, and climate-related forest conservation. Previously, Mr. Purvis directed U.S. environmental diplomacy, most recently as Deputy Assistant Secretary of State for Oceans, Environment, and Science. In that capacity he oversaw U.S. foreign policy relating to climate change, biodiversity conservation, forests, toxic substances, ozone depletion and environmental aspects of international trade, and served as the deputy chief U.S. climate negotiator. Mr. Purvis currently holds climate change and international affairs research appointments at Resources for the Future, the German Marshall Fund of the United States and The Brookings Institution. He also serves as the Executive Director of the bipartisan Commission on Climate and Tropical Forests. He is a prize-winning honors graduate of Harvard Law School.