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US Geological Survey 2305 EurekAlert 1567 United States Depart 1183
RAND Corporation 1048 UK Environment Agenc 665 Bruegel 655
Center for Strategic 635 us environmental pro 631 Science 560
Department for Busin 556 Department for Envir 524 US Environmental Pro 400
World Resources Inst 372 gov.uk - environment 369 Rand Corporation 334
US Geological Survey 217 Scripps Institution 195 Asian Development Ba 183
Environmental Protec 157 National Academies P 155