Oh, for sure. There will be battles for resources that would probably dwindle exponentially. There will be loads of suffering throughout. I've worried so much for years and have made my own contributions to reduce my carbon footprint - recycled and reused as much as I can, not buying a car, among others - and it's so exhausting to keep caring when the main perpetrators get to keep doing it abundantly relatively scot-free. At this point, it's just easier for my own mental health to choose my battles and to choose which one to worry more and hopefully help in that aspect. This is one of the main reasons I've decided to become childfree; it's just cruel to bring life to an uncertain world where the bad guys run rampant.