Speaking for the US many populated arid areas are completely unsustainable as population centers (ironically also where most people in the US have been moving for awhile now), especially because water resources haven’t been managed rationally in many arid areas. This story will absolutely be a global one though, see Tehran for one massive example, Lake Mead for another. No water and deadly heat waves are going to make for limitless ghost town tourism attraction opportunities!
The future is bright for abandoned building photography communities!
I in a city that is a confluence of two rivers and the next city over is known for its aquifer.
Yet, the city government has hired consultants to come up with ideas for how to handle expected water shortages in the area as a result of development. Not to get all /c/collapse but it sure does make me feel negative about humanity’s effect on the planet.
Add to the list Mexico City, which hasn’t had water for a while.