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EurekAlert 513 World Resources Inst 296 RAND Corporation 196
United States Depart 191 UN Sustainable Devel 174 Department for Busin 170
us environmental pro 170 Imperial College Lon 157 World Business Counc 154
Science 135 UK Environment Agenc 119 US Environmental Pro 101
Bruegel 91 gov.uk - environment 88 Environmental Protec 82
United Nations Envir 80 World Wide Fund for 79 Department of Conser 62
Department for Envir 61 Convention on Biolog 52