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World Resources Inst 83 United States Depart 60 Department for Envir 40
EurekAlert 32 World Wide Fund for 30 United Nations Envir 25
gov.uk - environment 24 UK Environment Agenc 21 Global Environment F 15
UN Sustainable Devel 14 International Union 9 Cary Institute of Ec 7
Environmental Monito 7 Department of Conser 6 US National Scientif 6
Global Forum on Agri 5 Imperial College Lon 5 Science 5
US Geological Survey 5 World Bank Blogs 5