Originally posted by traderonwallst
Estimates of the impact of water vapor on global warming vary widely from a minimum of 60% of all greenhouse effect to 98% of all greenhouse effect, but even at the minimum of 60%, that leaves 40% of greenhouse effect to be shared by all other chemicals combined, including carbon dioxide and methane (which has ten times the greenhouse capacity pound for pound as carbon dioxide).
No-one in climate science seriously thinks water vapour takes up 98% of the greenhouse effect. You might find that on a particular type of website though. The other figure sounds more like the scientific position, CO2 is generally found to possess about 8-24% of the GE effect (due to overlapping IR absorptivity).
But this is interesting.
It clearly shows the contradictory and illogical position you hold. You really don't understand this stuff, as if you did, these contradictions would be hard to exhibit:
Now then, looking at Carbon Dioxide, we find that only .117% of atmospheric carbon dioxide is directly attributable to human technology
c.f. earlier
Since 1750, the amount of carbon dioxide in the atmosphere, mainly from burning fossil fuels, has risen to about 380 parts per million from 286 parts per million. (sounds like alot, but thats still only 33%.
.117% != 33%
A slight bit of error in the .117% calculation.
Cheers.
[edit on 15-11-2007 by melatonin]
) 
