The other greenhouse gases: carbon dioxide, methane, nitrogen dioxide, and various others including CFCs, contribute only five per cent of the effect, carbon dioxide being by far the greatest contributor at 3.6 %.
However, carbon dioxide as a result of man's activities is only 3.2 % of that 3.6, hence only 0.12 % of the greenhouse gases in total. Human-related methane, nitrogen dioxide and CFCs etc make similarly minuscule contributions to the effect: 0.066, 0.047 and 0.046 % respectively.
So is there really anything humans can do to effect the situation at all, positively or negatively?
2007-05-21
07:51:49
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8 answers
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asked by
John H
2