Law and legislation Air Pollution -- 1 Air power -- 1 Air quality management -- 1 Environmental economics 1 Environmental law -- 1 Environmental law, International 1 more ... Foreign trade regulation 1 Government liability (International law) 1 Government policy 1 International cooperation 1 International economic relations 1 International finance -- 1 Marine pollution -- 1 Maritime law 1 National security -- 1 Ozone layer depletion -- 1 Prevention -- 1 Sustainable development -- 1 Tariff -- 1 Terrorism -- 1 War and emergency legislation 1 World Trade Organization 1 less ...