The CIES welcomes regularly visiting fellows and has several external affiliated researchers. 

Katja doose

Visiting Fellow & Lecturer


Katja Doose is a research fellow at the department for Russian Environmental Studies in the School for Geography, Earth and Environmental Sciences at the University of Birmingham. There she works in a project on the Soviet history of climate change science. She holds a PhD in Eastern European History from the University of Tübingen. From 2015-2017 she has been a fellow of the ZEIT Foundation.

Her research focuses on: the history of the Soviet Union, in particular its environmental history including disasters and climate change as well as urban history. Her recent publications include ‘Natural and anthropogenic climate change understanding in the Soviet Union, 1960s-1980s‘ (with Jonathan Oldfield, 2018)); `The Armenian Earthquake of 1988: A perfect Stage for the Nagorno-Karabakh Conflict`(Europe-Asia Studies, 2018); ‘Spitak: the last petrified Soviet Utopia’, in: Tigran Harutyunyan, Architectural Guide Yerevan (2017). Since October 2018, Katja has been a fellow at the Graduate Institute for the Centre for International Environmental Studies (CIES) and as of the fall semester 2019, Katja Doose is a lecturer in the MINT programme.


YiXian Sun 

Affiliated Researcher

Yixian Sun

Yixian Sun is a Postdoctoral Fellow at the Yale School of Forestry & Environmental Studies, Yale University, and an affiliate of the Yale MacMillan Center Council on East Asian Studies. He holds a Ph.D. and Master's degree in International Relations / Political Science, from the Graduate Institute of International and Development Studies (IHEID) in Geneva, and he is also affiliated with its Centre for International Environmental Studies (CIES). His research has been funded by the Swiss National Science Foundation.

His research interests include transnational governance, environmental politics, and sustainable consumption and production. He seeks to explain whether and how private governance initiatives can help large emerging economies, China in particular, achieve sustainability transitions. His work has been published in the Review of International Political Economy, Global Environmental Politics, and VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations. Besides his research, he is also a writer for the Earth Negotiations Bulletin, having attended various meetings of multilateral environmental treaties.


Philipp Grosskurth

Visiting Fellow

Philipp Grosskurth

Philipp Großkurth joined RWI´s Berlin office in September 2013 as a researcher in the research department "Environment and Resources". He is also a scientific advisor to the workgroup legal affairs of the research project Energy Systems of the Future. Since October 2018, Philipp has been a fellow at the Graduate Institute for the Centre for International Environmental Studies (CIES). 

Following internships in Frankfurt and Geneva he worked as a consultant for investment policy for UNCTAD. He studied international economics in Göttingen and Seoul, focusing on development economics, applied econometrics and foreign languages and is a member of the Carlo-Schmid-Program Network for International Politics and Co-operation.

Research Interests
International Trade and Foreign Direct Investment, Environmental- and Energy Economics, Development Economics, Applied Econometrics, Economics in Videogames


Eva van der Marel 

Visiting Fellow

Eva van der Marel

Eva R. van der Marel is a doctoral candidate at the Jebsen Centre for the Law of the Sea in Tromsø, in the process of finalizing her thesis. Her research asks under what circumstances it is ‘acceptable’ for states to unilaterally resort to market-related measures to ‘combat IUU fishing’.  Eva holds an LLB in English and French Law (Exeter), a Maîtrise in European Law (Rennes 1), and an LLM in Environmental Law and Policy (UCL). Prior to moving to Tromsø, she worked as a research assistant on renewable energy law (Oxford) and on carbon capture and storage (UCL). Since October 2018, Eva has been a fellow at the Graduate Institute for the Centre for International Environmental Studies (CIES). 


Celine Kahn

Communication Assistant


Student at the Graduate Institute, Céline Kahn is doing a Master in Development Studies with a specialization in Environment, Resources, and Sustainability. Her focus is on Ecosystem management and more specifically in the marine ecosystem. Before coming to the Graduate Institute, she has pursued a BA in Geography and International Development at the University of Sussex (Brighton, United Kingdom) between 2014-2017. Céline had already the opportunity to work with CIES through the Sustainability Week Switzerland in Geneva as a project coordinator. During the Summer 2019, she had the opportunity to work with UN Environment Regional Office North America in ecosystem management.