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Science X network 130 Minging.com 60 European Space Agenc 50
Water Environment Fe 49 UK Environment Agenc 36 U.S. Energy Informat 35
Department for Busin 32 EurekAlert 24 GOV.UK - Department 21
Environment & Energy 20 German Aerosapce Cen 19 gov.uk - environment 16
us environmental pro 16 Department of Conser 15 Environmental Protec 14
European Centre for 14 Australian Resources 13 E3G 13
Minerals Council of 13 World Resources Inst 12