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Old 11-04-2009, 08:07 PM   #35 (permalink)
roflwaffle
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Quote:
Originally Posted by chuckm View Post
Again, let's go to the data. During the Jurassic period, the CO2 level was at 1950ppm. Agreed or not? The earth was 3ºC warmer than present. Agreed or not? But did you catch that? The Jurassic period had CO2 levels 5 times present levels and was only 3ºC warmer! It wasn't 10ºC warmer or even 5ºC warmer, but 3ºC. (Also, life seems to have flourished during the Jurassic period, despite this relative warmth.)
If only we could dial back the solar constant on demand! Unfortunately, we can't, and we also can't expect to see the same rise in temperature w/ similar Carbon levels unless we figure out how to turn the sun down, or maybe drop the Earth's albedo. Geo-engineering anyone?
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