I love that talk. It's just so ... unnecessary & preventable

In what sense will the earth be fine?

Is it the sense that people care about or is it a rhetorical trick to make people feel good about not caring?

Something will survive, but maybe not mankind.

The while save the planet thing isn't about the planet but about us.

If we change the environment, nature will adapt and live will continue but maybe not in a way we can survive.

So it's unlikely that we kill live on earth just the live as we know it

The important part is the rest of the sentence:

“… but the humans won’t.”