I think one of the bigger problems of global warming will be mass migrations and less arable land and probably a ton of other big problems. How would you deal w

I think one of the bigger problems of global warming will be mass migrations and less arable land and probably a ton of other big problems. How would you deal with those problems? Do you have any ideas on that (serious question)? And what do you think the biggest problems would be and how would we adapt to those?