Angel Hsu, PhD is an Assistant Professor at Yale-National University of Singapore College and the Yale School of Forestry and Environmental Studies. She is Director of the Environmental Performance Index, released biennially by the Yale Center for Environmental Law and Policy. She was a 2010-2011 Fulbright Scholar to China and has testified before the U.S.-China Economic and Security Review Commission on China's environmental policy. Her work has been cited and published in major media, including The Economist and The New York Times. She holds a Ph.D. in Forestry and Environmental Studies from Yale University.