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Mann said it’s not known just how much of a positive feedback effect a warmer, moister atmosphere and the increased cloud cover might have — which is why projections for the global temperature rise by 2100 vary by several degrees. Also, it remains to be seen how well scientists are modeling the effect of weather patterns such as El Nino and La Nina. If the models are off, “maybe we can’t trust what they’re predicting” when it comes to climate change on a region-by-region level.
http://cosmiclog.msnbc.msn.com/_news/2010/11/08/5426675-life-after-climategate
Good stuff, but …..
- We don’t know if clouds are a positive or negative feedback
- El Nino and La Nina are not weather
- We know for sure that El Nino and La Nina can not be forecast more than a few months in advance
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