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Science X network 701 EurekAlert 489 us environmental pro 422
US Geological Survey 294 US Environmental Pro 249 Science Daily 239
Environmental Monito 209 EurekAlert! 209 EurekAlert! - Earth 177
United States Depart 134 World Resources Inst 131 UK Environment Agenc 124
world meteorological 114 gov.uk - environment 108 United Nations Envir 100
World Wide Fund for 89 Department for Envir 86 Water Environment Fe 83
US Department of Ene 78 Environmental Protec 74