Climatic changes -- Environmental aspects 29 Climatic changes 22 Environmental aspects -- 9 International cooperation 7 Government policy 6 Economic aspects 4 more ... Environmental policy 4 Global warming -- 3 Economic aspects -- 2 Effect of human beings on 2 Environmental policy -- 2 Forecasting 2 Global warming 2 Greenhouse gases -- 2 Social aspects 2 Canada 1 Case studies -- 1 Charts, diagrams,etc 1 Clamatic changes 1 Climate changes 1 Climate changes -- 1 Climate cjanges -- 1 Climatic factors 1 Climatology -- 1 Decision making 1 Developing countries 1 Developing countries -- 1 Economic conditions 1 Economic development -- 1 less ...