Gwern raised some cautions about the studies indicating that these moderate levels of CO2 have cognitive impacts. I haven’t read enough to have an opinion, but

Gwern raised some cautions about the studies indicating that these moderate levels of CO2 have cognitive impacts. I haven’t read enough to have an opinion, but any HN readers interested in this should probably follow up on the studies he references: https://news.ycombinator.com/item?id=21569947 https://news.ycombinator.com/item?id=21569947.