The Earth didn’t become uninhabitable to animals and plants when volcanic activity raised the CO2 level to six times the current amount preceding dinosaur evolu

The Earth didn’t become uninhabitable to animals and plants when volcanic activity raised the CO2 level to six times the current amount preceding dinosaur evolution. And it won’t happen for us either. That doesn’t mean climate change won’t be a significant challenge, but it’s not an extinction level event for generalists like humans who can survive in all sorts of environments.