Dr. Kostas Bithas is Professor of Environmental Economics and Sustainable Development at Dept. of Economics and Regional Development at Panteion University and research associate at Michigan State University. He has coordinated several research projects on natural resources management, climate policy and sustainability design. His major interest lies on the dependency of the economic process on natural resources (mass and energy) and on how contemporary environmental policies, among them policy those focusing on circular economy, can relax this dependency.