2)其他温室气体 HO CI Contributions to Global Warming by the Major Greenhouse Gases Nitrous Oxide ozone 7% Carbon Methane 12% Dioxide 54% 21% CFC Source. The Greenhouse Trap, Francesca Lyma Worl Resowrces Institute. 19902）其他温室气体 H2O CH4 N2O O3 CFC等多原子分子（30多种）