Today, the parts per million of carbon dioxide in the atmosphere graph has gone up from 1960 to about what it was in 1820, and a little less than it was in 1940. Not much actual danger, here. If the levels of carbon dioxide fall too far, all warm-blooded animals will die, so we’d be safer if there were more than the minimal amount there is.
What’s the point of making a life-sustaining necessity like carbon dioxide into something dangerous?