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Environment & Energy 7 EurekAlert! - Earth 6 Minging.com 4
Brookings Institutio 3 Science Daily 3 United States Depart 3
Environmental Health 2 EurekAlert 2 Science 2
The Associated Press 2 Environment and Clim 1 EurekAlert! 1
Imperial College Lon 1 National Science Fou 1 Resources for the Fu 1
us environmental pro 1