You're being downvoted but this is pretty much what we should expect to happen (unless we take real action). A zero sum mess for livable spaces for some decades. I'm sure humanity will be awesome again in like 2300 once we get out of it and the wisdom of the mistakes are engrained in the new culture (it'd be wonderful to see).
I can see several million or even billion people die in the next 20 to 30 years.