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Department of Conser 157 World Wide Fund for 84 EurekAlert 55
World Resources Inst 51 Department for Envir 43 Convention on Biolog 40
US Geological Survey 23 Environmental Protec 17 Global Environment F 16
United States Depart 16 United Nations Envir 15 International Union 14
Scripps Institution 14 UK Environment Agenc 14 us environmental pro 13
Science 12 Cary Institute of Ec 11 Department of the En 11
Government of Canada 11 RAND Corporation 11