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United States Depart 47 EurekAlert 24 RAND Corporation 24
Science X network 23 Center for Strategic 16 Science 12
Scripps Institution 10 World Resources Inst 8 Rand Corporation 7
Scientific American 7 Department of Energy 6 US Geological Survey 6
Government of Canada 5 Minging.com 5 National Academies P 5
US Environmental Pro 5 us environmental pro 5 world meteorological 5
Environment and Clim 4 German Aerosapce Cen 4