Sonja Thielges joined the IASS as a research associate in August 2016. Her work in the Pathways to Sustainable Energy project focuses on the global energy transition. Her research interests include the G20 energy agenda, the international dimension of the energy transition, as well as U.S. energy and climate policy. Before coming to the IASS, Sonja was a member of the Americas Division at the German Institute for International and Security Affairs (SWP), where her research focused on U.S. climate and energy policy. She also worked on projects at the Environmental Policy Research Centre (FFU), the Institut für Europäische Politik (IEP) Berlin, and the Centre International de Formation Européenne (CIFE). Sonja completed an M.A. in North American Studies, Political Science and Modern History at the Freie Universität Berlin and Indiana University Bloomington. She is currently working on a PhD project on state-level climate policy discourses in the U.S. at the John F. Kennedy Institute for North American Studies. She did field research for her dissertation as a DAAD-funded visiting researcher at the University of Michigan in Ann Arbor as well as in Washington, D.C.