Director of Energy Research & Analysis at Union of Concerned Scientists

Adjunct Lecturer in Public Policy at Harvard Kennedy School

Associate Director - Energy and Minerals at United States Geological Survey

Global Director, Energy at World Resources Institute

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

President at Friends of the Earth

Professor Of Archaeology at Bournemouth University, UK in Poole, ENG

Vice-President (Term Expires 2021) at The Association for Living History, Farm and Agricultural Museums

Professor of Religious Studies at University of Colorado, Boulder in Boulder, CO

Professor of History at Middlebury College

Associate Professor of Chinese Studies at the University of Florida in Gainesville, FL

Conservator at Metropolitan Museum of Art

Professor of Political Science and of Communication at Stanford, Department of Political Science

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

Director, ACTION Secretariat at RESULTS

Professor of Public Policy at Duke University

Professor of International Affairs. Professor of Politics and International Affairs at Princeton University

Chair of South Asian Politics at Claremont McKenna College