This is actually the premise of a video game: https://store.steampowered.com/app/1062090/Timberborn/

Well, I'll be dam(ned).

> For better or worse, climate change will put an end to the age of mankind

What are you talking about? Climate change, as predicted in the IPCC reports at least, don't even come close to describing the demise of mankind. That sort of talk is just apocalyptic fear mongering.

If you're really reading what the IPCC is saying, you'd understand that western lifestyles are under threat. Within most peoples' lifetimes, the carrying capacity of earth will be cut in half, unless emissions are reduced severely. Perhaps this is not the demise of mankind, but I think most people would categorize that as a kind of apocalypse. I'd love for you to tell me how human population being halved is somehow okay.

Gen X zeitgeist mongering

If Gen X had been worried about climate change we might have done something about it by now...