Nuclear war isn't really that big a deal thanks to MAD. No one would be stupid enough to nuke a nuclear armed country, so at worst you end up with a consolidati

Nuclear war isn't really that big a deal thanks to MAD. No one would be stupid enough to nuke a nuclear armed country, so at worst you end up with a consolidation of countries (a trend we're already seeing, with the EU becoming more and more like a singular sovereignty, expansionism by the Chinese, and the East African Federation). "Total ecological collapse" is overstated: We could make the world a lot shittier to live in before it completely topples civilization. And water shortages are basically the same way: as long as energy is (relatively) plentiful, it's more matter of "making civilization more expensive" than "the endtimes". Again, I'm not saying we shouldn't address these issues. I like a better future rather than a worse one. I'm just saying that we're not sliding into the dark ages anytime soon.