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EurekAlert 51 United States Depart 24 Center for Strategic 20
Imperial College Lon 17 Scripps Institution 16 UN Sustainable Devel 16
Water Environment Fe 15 us environmental pro 15 EurekAlert! 12
RAND Corporation 12 EurekAlert! - Earth 11 Science X network 11
World Business Counc 9 GOV.UK - Department 8 Australian Resources 7
Organization for Eco 7 US Environmental Pro 7 Minerals Council of 6
Rand Corporation 6 Royal Meteorological 5