Earth climate was never stable or unchanging. So nature certainly don't fight climate change.

> [...] and go again for better life.

To be fair, it might also reset in few million years to be nothing but earthquakes and volcanoes. See: Venus.

We still don't have any proof of earth having consciousness. Even if it has, it's probably not thinking in a human way... Do you really think it has the same definition of "screw up" as we do? Maybe earth thinks forests are itchy and hopes human beings to chop down all of them...

Actually, I am suggesting exactly the opposite of what you have interpreted.

The Revenge of Gaia? https://en.wikipedia.org/wiki/Gaia_hypothesis

Revenge insinuates vindication for our actions by Earth. But Earth don't care. I like to think of it as a giant and complex spaceship rather than a living being.

I think you might be looking for this instead: http://en.wikipedia.org/wiki/Medea_hypothesis