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共58条,第1-20条
EurekAlert 127 RAND Corporation 36 Science 34
UN Sustainable Devel 34 Imperial College Lon 28 Bruegel 23
Science Daily 17 Canadian Institute o 14 Global Environment F 13
U.S. Energy Informat 10 World Bank Blogs 9 world meteorological 9
United Nations Envir 8 UN-Habitat 7 United Nations Devel 6
World Resources Inst 6 Eco-Business Researc 5 German Aerosapce Cen 5
United States Depart 5 Asian Development Ba 4