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EurekAlert 517 Scripps Institution 302 World Resources Inst 245
World Business Counc 241 Center for Strategic 207 Imperial College Lon 194
RAND Corporation 186 UN Sustainable Devel 184 World Wide Fund for 142
Science 119 United Nations Envir 104 Department for Busin 102
Bruegel 93 Institute for Europe 79 United States Depart 75
Department for Envir 72 Natural Environment 52 Convention on Biolog 51
Water Environment Fe 50 us environmental pro 49