Ph.D. Alumni

Graduates of the STEP doctoral program pursue varied careers in the academic, government, nongovernmental and private sectors. Below is a list of all STEP graduates to date. 

Shardul Agrawala (STEP 1999) Administrator, Climate Change, Environmental Directorate, OECD, Paris, France.

Shiri Avnery (STEP 2012) Principal and founding member of Thistle.Inc – Environmental food service provider. San Francisco, CA.

Hrijoy Bhattacharjee (STEP 2010) Private Consulting

Richard Duke (STEP 2002)  Special Assistant to the President at the White House  since July 2016; formerly  Deputy Director for Climate Policy and Associate Director for Energy and Climate Change,  White House Office of Energy and Climate Change Policy, Council of Environmental Quality, Washington, DC 

Majid Ezzati (STEP 2000) Professor/ Chair in Global Environmental Health, Imperial College London, School of Public Health, London, UK ;  E-mail:

Michael Gillenwater (STEP 2013) Executive Director, Greenhouse Gas Management Institute, Seattle, Washington.

Joshua Handler (PS&GS 2002) Strategic Force and Issues Division Chief, Office of Analysis for Strategic, Proliferation, and Military Issues, Bureau of Intelligence and Research, United States Department of State

Phil Hannnam (STEP 2016) Young Professional (Operations Officer) at the World Bank Group, Washington, D.C.

David Hassenzahl (STEP 2000) Dean, College of Natural Sciences, California State University, Chico.

David Kanter (STEP 2014) Assistant Professor of Environmental Policy, Department of Environmental Studies, New York University.

Ronald Scott Kemp (STEP - SGS 2010) Assistant Professor, Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA

Nicolas Lefevre-Marton (STEP 2013) Associate at McKinsey

Aaron Levine ( STEP 2007) Associate Professor of Public Policy, Georgia Institute of Technology, Atlanta, Georgia.

Jie Li (STEP 2010) Senior Climate Change Specialist, The World Bank, Washington, DC

Junfeng Liu (STEP 2006) Assistant Professor, Peking University, College  of Urban and Environmental Sciences, Beijing, People's Republic of China

Robert Margolis (STEP 2002) Senior Energy Analyst, U.S. Department of Energy, National Renewable Energy Laboratory, Washington, D.C. 20024.

Wei Peng (STEP 2016) Giorgio Ruffolo Postdoctoral Research Fellow, Harvard Kennedy School.

Eri Saikawa (STEP 2010) Assistant Professor, Department of Environmental Studies, Emory University, Atlanta,Georgia.

Yesim Tozan (STEP 2004) Research Assistant Professor, Steinhardt School of Culture, Education and Human Development, New York University, NYC.

Xiaoping Wang (STEP 2004) Senior Energy Specialist, World Bank, MSN, Washington, D.C. 20433.

Derek Willis (STEP 2010) Visiting Research Scholar, Columbia University.

Yuan Xu (STEP 2010)  Associate Professor, Department of  Geography and Resource Management, The Chinese University of Hong Kong,  Coordinator, Concentration of Global Change and Resource Management, Leader, Environmental Policy and Governance Programme, Institute of Environment, Energy and Sustainability

Chi-Jen Yang (STEP 2008) Research Scientist, Center on Global Change, Duke University, Durham, North Carolina.