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共19条，第1-19条
EurekAlert 17 Science Daily 15 EurekAlert! 5
The Copernicus Progr 4 NASA Global Climate 3 Climate News Network 2
Convention on Biolog 2 World Resources Inst 2 British Antarctic Su 1
Centre for Ecology & 1 Environment & Energy 1 Environmental Protec 1
European Centre for 1 Science 1 Scientific American 1
The Copernicus Progr 1 The European Environ 1 United Nations Envir 1
world meteorological 1