The military has done numerous studies showing that CO2 concentrations far higher than 1000ppm don’t have any cognitive impacts. That combined with the real wor

The military has done numerous studies showing that CO2 concentrations far higher than 1000ppm don’t have any cognitive impacts. That combined with the real world examples of submarine crews working in high CO2 concentration, means that the most likely explanation is a flaw in the studies showing severe cognitive impact at 1000ppm. Here’s a good summary of some of the data from a hacker news comment a while back https://news.ycombinator.com/item?id=19863319 https://news.ycombinator.com/item?id=19863319