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by e12e
3265 days ago
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But seems to be in line with NASA findings: https://thinkprogress.org/its-taking-less-co2-than-expected-... Also, the general safety limit for co2 is around 5000 ppm for up to 8 hours - higher than that, and headaches and other effects will manifest. I'm quite surprised that "no effect" could be seen at 40k ppm - I wonder if there were some limits to the cognitive tests (like the difference between proving a difficult mathematical theorem vs doing some Calculus). |
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