To play devil's advocate - unless you were to take the position of declaring bankruptcy on the possibility that a complex society of competing actors can agree on climate change - and therefore this being an unsolvable problem that you need AI to solve, as humans can't handle the complexity.

I find a lot of the debate on either climate change or AI collapses if you point out that "we shouldn't do this, we should ALL just do this" is an extremely unrealistic position in an international complex ecosystem of competing actors.