aelf
Ashen One
Doesn't the game end in like 2050? Some of the worse projections make it very much a part of our timeline then, and desertification and extreme weather and such already began in the 2010s.
The stated year doesn't even matter, as tech progress can happen much faster in game. Space victory can be won way before the 20th century, and we are not even that close to it IRL. So by the 19th century or something, emissions can plausibly exceed today's standards IRL.