Jürgen Scheffran is Professor of Integrative Geography (em.) at the University of Hamburg, and since 2009 Chair of the Research Group Climate Change and Security (CLISEC) in the Center for Earth System Research and Sustainability and the Climate Excellence Cluster CLICCS. After study and his doctorate in physics, he worked in interdisciplinary groups in environmental, security and conflict research at the universities of Marburg, Darmstadt, Paris and Illinois, as well as the Potsdam Institute for Climate Impact Research (PIK). In addition to networking activities and editorial work on science and peace, Dr. Scheffran has been involved in projects for the United Nations, the Office of Technology Assessment of the German Parliament, and in the Expert Commission on the Causes of Forced Migration of the German government.