But humans can currently live in vastly different climates on the earth already. Unless something happens way outside of the worst case climate change models, we’re just not looking at anything near an extinction level event for humans.
The big island of Hawaii alone has enough population to not suffer genetic inbreeding problems and it’s mountains mean it can handle multiple meters of sea level rise. The entire rest of the planet could be dead and they would be enough to avoid extinction.
If we’re going to start ignoring climate science to scream about human extinction, then we’ve moved into the same corner of the deniers. Let’s stick with what we know, which is catastrophe and mass migrations; but that’s leagues away from extinction.
The big island of Hawaii alone has enough population to not suffer genetic inbreeding problems and it’s mountains mean it can handle multiple meters of sea level rise. The entire rest of the planet could be dead and they would be enough to avoid extinction.
If we’re going to start ignoring climate science to scream about human extinction, then we’ve moved into the same corner of the deniers. Let’s stick with what we know, which is catastrophe and mass migrations; but that’s leagues away from extinction.