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Politics : Foreign Affairs Discussion Group

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To: neolib who wrote (187268)5/25/2006 6:43:45 PM
From: Brumar89  Read Replies (2) of 281500
 
Not greenhouse gases.

You're right. How do we know how much of present warming is due to us putting more co2 in the atmosphere vs a normal swing (like the medieval warm period) which would have happened regardless of our fossil fuel burning?
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