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Environment & Energy 1540 Center for Strategic 192 RAND Corporation 185
E3G 152 Science X network 150 EurekAlert 122
Science 76 The Associated Press 63 ANU Climate Change I 51
World Resources Inst 51 Center for Internati 50 Bruegel 41
Environmental Health 40 Convention on Biolog 29 EurekAlert! 27
Minging.com 26 Australian Resources 24 Rand Corporation 24
World Business Counc 19 Science Daily 18