Edited by Phoebe Koundouri, Professor, Athens University of Economics and Business, Research Professor, Technical University of Denmark, President, European Association of Environmental Resource Economists, Chair, World Council of Environmental and Resource Economists Associations, Chair, UN Sustainable Development Solutions Network Global Climate Hub, Katia Karousakis, Organisation for Economic Cooperation and Development (OECD), Paris, France, Dionysis Assimacopoulos, National Technical University of Athens, Greece, Paul Jeffrey, School of Water Sciences, Cranfield University, UK and Manfred A. Lange, Energy, Environment and Water Research Center, Cyprus Institute