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EurekAlert 285 RAND Corporation 102 UN Sustainable Devel 92
Science 74 Science Daily 52 Bruegel 49
Imperial College Lon 49 World Resources Inst 37 United Nations Devel 29
Global Environment F 28 United Nations Envir 28 Canadian Institute o 26
World Business Counc 23 Center for Strategic 19 world meteorological 18
U.S. Energy Informat 16 UN-Habitat 16 World Bank Blogs 16
Minging.com 14 UK Research and Inno 13