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Science X network 511 EurekAlert 306 Science Daily 186
EurekAlert! - Earth 136 EurekAlert! 86 World Wide Fund for 66
Convention on Biolog 54 Department of Conser 49 Environment & Energy 39
European Space Agenc 38 Science 34 US Geological Survey 31
United Nations Envir 27 NewScientist 21 US Geological Survey 21
Critical Zone Explor 20 Global Environment F 19 Minging.com 19
world meteorological 19 The Associated Press 18