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Feb6-04, 08:07 PM
Evo's Avatar
P: 26,524
From this quote from the story
Calcium combined with CO2, for instance, would have caused the precipitation of calcium carbonate. This process of CO2 consumption would have lowered levels of the greenhouse gas on a global scale.
Sounds like the earth created it's own widescale version of TUMS to get rid of the gas.