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World Wide Fund for 90 World Resources Inst 70 EurekAlert 61
Global Environment F 53 United Nations Envir 45 Department of Conser 31
United States Depart 29 International Union 28 UN Sustainable Devel 27
Convention on Biolog 20 World Business Counc 20 Cary Institute of Ec 19
Institute for Europe 19 us environmental pro 17 US National Scientif 16
Science 14 Department for Envir 13 Center for Internati 9
Scripps Institution 9 Environmental Monito 8