Mike Blackadder
2009-03-08 18:29:49
“If CO2’s effect is too small, then we can;t explain how we got out of the glaciation. Too large and we’d expect a runaway effect.”
Boris, like I said, when the uncertainty in the cloud effect is much larger than the expected CO2 effect one explanation could be that there was a greater contribution from clouds, and no CO2 effect at all. You can not discount that possibility from the ice core data alone (ie. CO2 x2 = 1 +/- 2 degrees).
It’s not from lack of trying, it’s just that this type of analysis has too much uncertainty to get any determination of the effect of CO2. In the meantime it is reasonable to have doubts, and to question why these ‘climate experts’ do not admit the same.
