Senior Attorney, Public Lands Program at Center for Biological Diversity

President at Friends of the Earth

Senior Bilingual Energy Analyst at Union of Concerned Scientists

Principal TR Climate in New York, NY

Nonresident Senior Fellow (Technology and International Relations) at Brookings Institution

Visiting Scholar in International and Public Affairs at Brown University, Watson Institute for International and Public Affairs

Associate Professor of Political Science at Stanford, Department of Political Science

Professor of Political Science at UC Berkeley

Laurence D. Belfer Professor of International Affairs and Professor of History at Harvard University, International Security Program at Harvard Kennedy School

Associate Professor of Political Science at Rice University

Senior Climate Scientist, Director of Climate Science at Union of Concerned Scientists

Senior Vice President of the Moore Center for Science at Conservation International

Faculty Affiliate, Harvard Project on Climate Agreements at Harvard Belfer Center for Science and International Affairs