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Politics : Politics of Energy
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To: RetiredNow who wrote (9967)6/25/2009 4:34:48 PM
From: Brumar89  Read Replies (1) of 86356
 
NEVER in the last 800,000 years has CO2 content in our atmosphere accelerated upwards as fast as it has in the last 150 years

Probably more true if we limited it to the last 60 years. But the question remains, will the increased CO2 have a significant and negative impact on the world's climate? If the increased CO2 does no harm or is beneficial (by say, postponing somewhat the start of the next ice age), we have no reason to care whether its at a level higher than in the last 800K years.

That question is still open. There is reason to think the warming of the last 60 (or 150) years isn't caused primarily by green house gases. And provocatively, one of the reasons to think that is the undetectable IPCC-identified "fingerprint" of GHG warming. I've posted about this before.
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