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us environmental pro 122 US Environmental Pro 87 EurekAlert 86
US Department of Ene 72 United States Depart 59 Science X network 55
World Wide Fund for 54 EurekAlert! 33 world meteorological 32
UK Environment Agenc 31 gov.uk-Department fo 30 EurekAlert! - Earth 26
Department of Conser 25 Department of Energy 24 Scientific American 23
Department for Envir 22 Environmental Protec 22 World Resources Inst 21
Global Environment F 20 United Nations Envir 20