I wouldn’t worry so much about the end of the world if it was going to be a short sharp ending, like if an asteroid hit us in 150 years.
Unfortunately from everything I’ve read, the likelihood is the next 100 years will see more frequent and extreme droughts, harsher hurricanes, floods, fires, crop failures, causing mass evacuations and migrations, and all this will cause conflicts and wars everywhere. Society will disintegrate into desperate struggles to survive at the end, it won’t be human civilisation as we know it.
I agree with the few posters talking about useless wasteful manufacturing of stuff. We really needed a stint of post-WWII style rationing world-wide to avoid the tipping point, but didn’t come close to that!
I think humans as a species can still survive but only a select few - Elon Musk’s descendants etc!
I feel sad for my kids and their kids, but, like most people, I seem to be able to function well without thinking about this stuff most of the time..😕 that’s the problem with human nature.