Harvard Study shows the potential climate change effects of increased CO2 levels, on human cognitive abilities.

Climate change could affect our ability to think, according to new research that found a link between rising carbon dioxide (CO2) levels and reduced cognitive abilities in humans.

Fascinating Harvard Study and Lawrence Livermore Laboratory studies presented in the below article; on the effects of CO2 on human cognitive abilities.

Even at 400 PPM, the current outdoor level; there are signs of effects. Most of human evolution was at half this rate. Indoor conditions, usually much higher concentrations; lead to a far more concerning side of CO2 levels.

Consider reading.
https://thinkprogress.org/exclusive-elevated-co2-levels-directly-affect-human-cognition-new-harvard-study-shows-2748e7378941/