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by unlikelymordant 1003 days ago
you mention climate being a waste, but one of the only extinction events bigger than KT was the permian triassic, and that was caused by high atmospheric CO2. We're already on track for a pretty bad time (if all current government climate commitments are met, we're still on track for 3.8 degrees of warming by 2100, which is already a mass extinction), I would put climate induced mass extinctions above asteroid induced ones, just because we are in one now, and it is guaranteed to get worse.
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What effect would a Chicxulub-class impactor have on atmospheric CO2?