Climatopolis: How Our Cities Will Thrive in the Hotter Future [Not!]
I am having trouble finding words for the pictures in my head.
Here are the pictures
Cities A, B and C show sharp declines in population.
Cities D, E and F show huge increases in population. All the people from A, B and C have moved to D, E and F because of drought, floods whatever... and lack of resources.
What's that going to do to the availability of resources in cities D, E and F? How's the infrastructure going to handle the sudden influx? Where will these people live? How are the current residents going to feel about the stress these migrants are putting on their neighborhoods?
There are many novels with this theme, but one of the best is Lucifer's Hammer
There's a couple of SciFi movies too: Waterworld and Mad Max.