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EurekAlert 365 Natural Resource can 157 Environment and Clim 144
Minging.com 123 Government of Canada 104 Science Daily 100
Convention on Biolog 50 world meteorological 27 Science 25
The Associated Press 20 U.S. Energy Informat 20 European Space Agenc 19
RAND Corporation 17 UN Sustainable Devel 16 Imperial College Lon 15
future earth 13 United Nations Envir 12 E3G 11
Canadian Institute o 10 Climate News Network 10