3 ms·

This is a meme on hacker news that's usually stated as a fact, but I'm not sure there's any robust evidence of cognitive impairment at <1000ppm

• progbits 10mo ago
  https://www.sciencedirect.com/science/article/pii/S036013232300358X https://www.sciencedirect.com/science/article/pii/S036013232... > In this study, a systematic review and meta-analysis of fifteen eligible studies was performed to quantify the effects of short-term CO2 exposure on cognitive task performance. > The complex task performance declined significantly when exposed to additional CO2 concentrations of 1000–1500 ppm and 1500–3000 ppm
  • codeulike 10mo ago
    Additional
  • ifwinterco 10mo ago
    It looks like there might be a very small effect starting at around 1000ppm but so small that many studies find no difference at all, and reliable effects are only noted at 3000ppm or more. So we're a long way from needing to scrub co2 from the atmosphere to get any work done
    • progbits 10mo ago
      Not from atmosphere but we need good ventilation. Over 2000ppm in offices is very common.
    • _yb2s 10mo ago
      Not everyone in a population will be affected the same by the same conditions, and the constraints of peer reviewed research make them often a poor choice for guiding personal decisions. By the time you have conditions bad enough to statistically prove harm in a large population, you’re likely already way past causing harm worth preventing in some subset of the population.