And it's not only climate change but there's also a negative effect on human cognition: https://thinkprogress.org/exclusive-elevated-co2-levels-directly-affect-

And it's not only climate change but there's also a negative effect on human cognition: https://thinkprogress.org/exclusive-elevated-co2-levels-directly-affect-human-cognition-new-harvard-study-shows-2748e7378941#.eefaybx2e https://thinkprogress.org/exclusive-elevated-co2-levels-dire...