this post was submitted on 05 Dec 2023
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submitted 9 months ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 9 months ago

Your question isn't entirely a hypothetical - this happened at the dawn of time, when photosynthetic life forms first evolved. First, it won't ever happen again, no matter how good we get at scooping CO2 from the atmosphere. Second, the result is theoretically catastrophic for aerobic life forms, but it's also a negative feedback loop, meaning it self corrects.