People forget that humans are as much a force of nature as a river flow. This is the standard advance on a planet. The climate and eco system will adapt as they always have. Not a hard concept.
What's stopping you from saying the same thing about, say, nuking a coral reef?
Moral platitudes are nice and all but like, the actual scientific research says something completely different here.
Also like, mass extinctions are 'natural' too, but that doesn't mean it won't forget up our way of life terribly.