To be fair, the planet is gonna be fine in the long term. It's the human race that's in danger... so maybe a win-win from his perspective??
“Let's be clear. The planet is not in jeopardy. We are in jeopardy. We haven't got the power to destroy the planet - or to save it. But we might have the power to save ourselves.”
But I don't think it's all that interesting of an argument. When people say save/destroy the Earth, they mean humanity. Call that arrogance, but it's true.
Life (especially sentient animals), on the other hand…
That's a kind of caring, but probably not the sort you were trying to imply.