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EurekAlert 229 Minging.com 175 Natural Resource can 85
EurekAlert! - Earth 50 world meteorological 20 U.S. Energy Informat 17
European Space Agenc 16 Mining Association o 14 Center for Strategic 9
International Energy 8 Commonwealth Scienti 7 Organization for Eco 7
Canadian Institute o 5 European Centre for 5 German Aerosapce Cen 5
American Geophysical 4 Department of Energy 4 Minerals Council of 3
NewScientist 3 Australian Resources 2