Professor for Environmental Psychology, Otto-von-Guericke-Universität Magdeburg (since December 2011). Beforehand Professor for Environmental Psychology at the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway (2009-2011). From 2002 to 2010 senior researcher and lecturer for Applied Psychology at the Ruhr-Universität Bochum. Member of the founding group and board of the Virtual Community on Sustainability and Consumption (since 2011); member and spokesperson of the board of the Environmental Psychology Division in the German Psychological Society (2003 – 2009), spokesperson of the task force “Multidisciplinary approaches to change behavior” in the DFG-priority program “Man and global environmental change” (1996-2000), founding editor of the journal „Umweltpsychologie“. (WBGU Member since 2013).