Responses

Short answer: It depends on what you mean by "reverse." If you mean "undo all the warming and damage already done" — yes, that's effectively too late, at least on any timescale that matters to humans alive today. If you mean "prevent the worst, most catastrophic outcomes" — no, it's not too late, and every fraction of a degree of warming avoided still matters enormously. Here's the nuanced pic

This is a great and important question, and the honest answer is nuanced: it's not "too late" in an absolute sense, but the kind of climate change we can still prevent is different from what we've already locked in. Let me pull in some current expert perspectives to give you an accurate picture. Short answer: No—but we're past "prevention" and into "damage limitation" Climate scientists generally