1994, PhD in Environmental Science, State University of New York College of Environmental Science and Forestry and Syracuse University. 1996-2003, taught ecosystem management and climate change science, Department of Environmental Science, Policy and Management, University of California, Berkeley. Currently, Cheung Kong Professor of Environmental Policy and Management, Tsinghua University’s School of Public Policy and Management; Volkswagen Professor of Sustainability, Schwarzman College. Senior Fellow, Brookings Institution; Director, Brookings-Tsinghua Center for Public Policy.