[ablation]

I'm not sure I agree with you. The only widely cited quantitative guess at this scenario I could find in a brief trawl puts the chance of any "climate-driven existential catastrophe" this century at about 0.1 percent [1].

"Extinction" is a stricter outcome than “existential catastrophe", so I would imagine the odds this century are even lower than 0.1 percent. In other words: don't resign yourself to the extinction of humanity in your lifetime - it's highly unlikely, and you're just going to be feeding the defeatism that is so tempting when external events are so seemingly negative.

As sibling commenter to this post notes though, I would imagine that mass unrest, famines, death etc. in less-developed parts of the world will occur, with knock-on effects for the developed world.

[1] https://www.tobyord.com/writing/the-precipice-revisited