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共87条，第1-20条
World Wide Fund for 165 EurekAlert 114 United Nations Envir 105
World Resources Inst 85 Global Environment F 72 International Union 68
UN Sustainable Devel 60 World Business Counc 59 Department for Envir 49
Plymouth Marine Labo 44 Department of Conser 41 Natural Environment 37
Scripps Institution 37 Institute for Europe 35 National Oceanograph 35
us environmental pro 33 UK Environment Agenc 30 Environmental Monito 28
Government of Canada 28 Stockholm Internatio 24