REKK Foundation for Regional Policy Co-operation in Energy and Infrastructure (REKK Foundation) Alliance of Associations Polish Green Network Centre for advancement of research and development in educational technology ltd-Cardet RCE Oldenburger Münsterland – Competence Center for Education for Sustainable Development e.V. Lusatian Perspectives Green Future Institute Foundation European Environmental Bureau (EEB) CEEweb for Biodiversity Housing Initiative for Eastern Europe e.V. (IWO) Independent Institute for Environmental Issues UfU e.V. Berlin