Except that the planet has been warming and cooling for millions of years.
To put into perspective:
Age of Earth: 4.6 billion years
How long Dinosaurs lived: 400 million years
Age of humans: 200,000 years.
The human species is literally less than a blip on the earth's historical radar. I'm convinced whatever we do to the planet, it will recover, like it always has. Humans not adapting? That's the real problem.