As George Carlin observed, the planet is gonna be fine.

Carlin was a comic. That's all.

As it happens, on this topic he's probably wrong. Can we move past quoting him as if he's some sage?

The planet has around 500 million years of habitability left: the sun, burning through to the end of its main-sequence years, will expand enough due to loss of mass that it will boil off the oceans in about that timeframe.

Self-considering life forms did not evolve until about 150,000 years ago, as far as we can tell. This was after at least 3 billion years of life forms on Earth - that's how remarkable the human species is.

The last extinction which parallels the one we're setting in motion was the Permian-Triassic, which killed off 90% of land-based species. Recovery from that one (in the sense of a return to a diverse collection of species on Earth) took at least 10 million years. Most, or at least many, paleontologists believe that life came close to ending at that time, or degenerating into nothing more than a lot of species with very few cells.

If things play out as they now seem to, it's possible that humans will be the only thing to survive, albeit in small numbers, living on what species we can grow to feed those small numbers. And with "only" 500 million years left, it's possible that life on this planet will never re-attain the complex and robust configuration it enjoyed around 100,000 years before George Carlin conceived of his unique and edgy brand of seemingly-rebellious-and-original patter which actually just tells people what they want to hear.

So Carlin is possibly wrong - totally wrong: we'll live on, while the planet, lacking the time or conditions to reboot a complex ecosystem of complex life forms, will run out the next 1/2 billion years as a wasteland containing a few hundred thousand humans and lots of bacteria.

Given all this, is there any way we can move beyond citing George Carlin as a sage on this matter? He's a fine comic, but not an authority here.