Well none of us will know what happens in the long run. Maybe climate change will wipe most of us out? Best we can guess is short term (next few decades). That time frame is where my comment was really aimed at.
The next few decades will determine the impact of climate change. It doesn't seem like a particularly hard problem to solve: embrace solar and nuclear power ASAP globally, but nothing is easy when people get involved. But even China seems to have read the memo now. But also, if someone even blurts out "clean coal" point and laugh.
Seems like Chairman Xi is serious about tackling Climate Change so he does not get deposed if the Gobi desert grows and eventually swallows up half of China.
https://www.nytimes.com/2021/09/22/world/asia/china-coal.htm...