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STEP: Ph.D. Alumni

Shardul Agrawala (STEP PhD 1999) Administrator, Climate Change, Environmental Directorate, OECD, Paris, France. E-mail:

Shiri Avnery (STEP PHD 2012)  Program Officer, NYU Center on International Cooperation

Hrijoy Bhattacharjee ( STEP 2010) Private Consulting

Richard Duke (STEP PhD 2002) Associate Director for Energy and Climate Change, Office of Energy and Climate Change Policy, Council of Environmental Quality and White House Domestic Policy Council, Washington, DC 

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

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

Joshua Handler (PS&GS PhD 2002) Foreign Service, Department of State, Washington DC.

David Hassenzahl (STEP PhD 2000) Dean, School of Sustainability and the Environment , Chatham University, Pittsburgh, PA. E-mail :

Ronald Scott Kemp (STEP 2010) Assistant Professor, Department of Nuclear Science  and Engineering, Massachusetts Institute of Technology, Cambridge , MA ( Visiting research Collaborator, WWS Program on Science  and Global Security)

Nicolas Lefevre-Marton (STEP 2013) Associate at McKinsey

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

Jie Li (STEP 2010) Specialist, Energy and Environment, Sustainable Development Department, South Asian Region, World Bank, Washington, DC

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

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

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

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

Xiaoping Wang (STEP PhD 2004) Senior Energy Specialist, World Bank, MSN, Washington , D.C. 20433. E-mail:

Derek Willis (STEP 2010) Postdoctoral research Scientist, Earth Insittute Fellow, Columbia University

Yuan Xu (STEP 2010)  Assistant 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.