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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: Maurice Winn who wrote (23506)	12/22/2008 8:21:41 PM
From: neolib	Respond to of 36917

? Now that was some CO2. But even that wasn't Peak CO2. How evolved were humans, and how many of them were living in large cities by the sea back then? I'm well aware that the Silurian existed and indeed, CO2 was rocking back then, most likely at a level which would give most species today a serious constant headache. Did you not that I pointed out that data from 400M to 1B years ago is known to the climate scientists in one of my previous posts? Look up paleoclimate in Wikipedia, they have some other interesting graphs going way back. Lots of variance in the different studies as one would expect when trying to extend things back that far.