There's plankton calcification too. Though that mechanism might break if increased atmospheric CO2 increases the acidity of the oceans...
Here's some joy: the last comparable period of sudden warming, which may have been down to a methane-release event, took place so rapidly that the geological record can't resolve a timescale (the resolution's about 1000 years). And it took 100,000 years to settle back down again.
'Welcome to the Hot Earth: Home of modern Humanity. Remember our old combustion-using forebears in the Age of Waste? Back then, they had something called "snow"...'
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timeasmymeasure
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Date: 2008-09-25 11:43 am (UTC)Here's some joy: the last comparable period of sudden warming, which may have been down to a methane-release event, took place so rapidly that the geological record can't resolve a timescale (the resolution's about 1000 years). And it took 100,000 years to settle back down again.
'Welcome to the Hot Earth: Home of modern Humanity. Remember our old combustion-using forebears in the Age of Waste? Back then, they had something called "snow"...'