Dr. Fellner is Associate Professor for Waste Management at TU Wien. Since 2012 he is heading the Christian Doppler Laboratory for Anthropogenic Resources, a temporary research center that aims at enhancing the sustainable utilization of man-made resources. Besides his work in different national and international organizations (ISWA International Solid Waste Association, IWWG International Waste Working Group, ÖWAV Austrian Association for Water and Waste Management) he is Associate Editor of Waste Management journal (Elsevier). His research interests are the field of landfilling, thermal waste utilization, innovative waste analysis and waste management in developing countries. The overall goal of his methodologically oriented research is to optimize the anthropogenic metabolism in view of environmental protection and resource conservation.