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Science X network 27 Environmental Monito 21 us environmental pro 19
US Environmental Pro 12 EurekAlert 11 Department of Conser 10
Science Daily 8 World Wide Fund for 6 UK Environment Agenc 5
United States Depart 5 World Resources Inst 4 EurekAlert! 3
EurekAlert! - Earth 3 Government of Canada 3 US Geological Survey 3
United Nations Envir 3 gov.uk - environment 3 Environmental Protec 2
Minging.com 2 Resources for the Fu 2