Environmental aspects Environmental policy Economic development -- 2 Climatic changes -- 1 Economic conditions 1 Environmental policy -- 1 Global warming -- 1 more ... Government purchasing -- 1 Green product -- 1 Greenhouse gases -- 1 International cooperation 1 International economic relations 1 International trade -- 1 Management 1 Natural resources -- 1 Prevention -- 1 Technological innovations 1 echnological innovations 1 less ...