Environmental policy -- Pollution -- Air -- 2 Case studies 1 Case studies -- 1 Economic aspects 1 Environmental aspects -- 1 more ... Environmental law -- 1 Environmental protection -- 1 Environmental risk assessment -- 1 Global warming -- 1 Government policy -- 1 Greenhouse gases -- 1 International cooperation 1 International cooperation -- 1 Marine pollution -- 1 Nuclear power plants -- 1 Safety measures -- 1 Transboundary pollution -- 1 less ...