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Politics : Foreign Affairs Discussion Group
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To: Ilaine who wrote (212875)1/13/2007 1:06:06 PM
From: neolib  Read Replies (2) of 281500
 
Here's an interesting report on an aspect of climate change that hadn't been discussed before -- CO2 is absorbed by the ocean, so the melting of polar ice triples the ability of the Arctic ocean to absorb CO2.

CO2 absorption is (IIRC) the most important sink and is very well studied, hardly new. The article you link claims that further melting might add 20M tons of additional sink per annum. This is not relevant in the global scheme. A much worse problem is that higher ocean temps result in lower ocean CO2 absorption, which raises the atmospheric equilibrium CO2 content. IIRC, something like 10 - 20 ppm increase in atmospheric CO2 for each 1 deg C ocean temp increase. So there is no net help from that quarter with higher temps.
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