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共62条，第1-20条
Department of Conser 381 EurekAlert 172 Convention on Biolog 147
World Wide Fund for 94 Science 70 Department for Envir 50
Cary Institute of Ec 32 UK Environment Agenc 32 United Nations Envir 31
United States Depart 25 gov.uk - environment 25 International Union 21
US National Scientif 19 Environmental Monito 18 Scripps Institution 17
NewScientist 16 World Resources Inst 16 Arctic Council 15
Global Environment F 15 US Geological Survey 15