SCIENCE POLITICAL SCIENCE 12 Environmental Policy 10 Public Policy 10 Environmental Science (see also Chemistry 9 Environmental) 9 Écologie politique 8 Political ecology 8 Environmental protection 7 Environnement 7 Protection 7 Développement durable 6 General 6 International cooperation 6 Sustainable development 6 Aspect politique 5 International relations 5 Political aspects 5 Relations internationales 5 Bürgerbeteiligung 4 Citizen participation 4 Citizenship 4 Earth Sciences 4 Environmental responsibility 4 Geography 4 Nachhaltigkeit 4 Participation des citoyens 4 Philosophie 4 Philosophy 4 Responsabilité environnementale 4