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At a very large scale, changes like a mountain removal or temperature increase of a few degrees are fully negligible. Even humanity should be able to reverse those if it decided to actually do it. Will we actually do so? It's not too likely.

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That's like saying increasing the internal temperature of a steak is a negligible change at a very large scale. You can't uncook a steak.

But growing another cow is straightforward.

might only need to grow the steak.

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