German Council of Economic Experts
From 1997 until 2005 he was member of the Wuppertal Institute for Climate, Environment and Energy and worked closely together with the economist and former member of the German Council of Economic Experts Prof. Dr. Gerhard Scherhorn. As research leader at the "Institute for Household- and Consumer Economics", University of Hohenheim he worked until 2004 on "urban subsistence as urban infrastructure" . Inter alia he lectured at the "Institute for Social Anthropology" / Martin Luther University of Halle-Wittenberg. 2006 to 2007 he was appointed as Research Fellow for Science in Innovation at the Natural History Museum London towards the interplay of diversity and plurality of life and its complexity. Later he became the scientific director of the research group Ethical-Ecological Rating at Goethe-University, and until 2018 Vice Director of the European Centre for Sustainability Research (ECS) at Zeppelin University, Friedrichshafen, Germany. Furthermore, he is senior fellow of the Institute for Advanced Sustainability Studies.