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European Space Agenc 1678 Science X network 1137 Federal Environment 766
EurekAlert 724 UK Environment Agenc 704 us environmental pro 689
Environment & Energy 626 UN Sustainable Devel 544 gov.uk - environment 505
International Energy 494 US Environmental Pro 413 International Renewa 411
United States Depart 383 European Environment 373 Science 265
EurekAlert! 230 Science Daily 228 German Aerosapce Cen 208
EurekAlert! - Earth 185 Department for Envir 183