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Science X network 115 us environmental pro 67 EurekAlert 50
US Environmental Pro 37 World Resources Inst 31 Science Daily 29
The World Bank 27 World Bank Blogs 23 EurekAlert! 19
Environmental Monito 18 EurekAlert! - Earth 16 United States Depart 15
Eco-Business Researc 14 Water Environment Fe 12 Environmental Protec 10
US Geological Survey 10 World Wide Fund for 9 Stockholm Internatio 7
US Department of Ene 7 US Geological Survey 7