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EurekAlert 1005 United States Depart 405 UN Sustainable Devel 376
World Resources Inst 373 World Business Counc 356 World Wide Fund for 303
RAND Corporation 278 us environmental pro 198 Imperial College Lon 178
Center for Strategic 177 United Nations Envir 158 Department for Busin 143
Science 127 US Environmental Pro 123 Government of Canada 102
US Geological Survey 98 Scripps Institution 95 Department of Conser 94
Global Environment F 91 Convention on Biolog 84