Really since the advent of Air Conditioning and the explosion of cheap suburbia in the the post WW2 world, the population of the US has seen an explosion in the 'sun belt' with huge swathes of Yankees moving to places like Texas, Arizona and Florida. PA for example, has lost electoral votes every reappointment since the 1930's, NY lost another 2 electoral votes while Texas continues to boom.
Is there ever going to be a reverse of the trend here where people actually move back to good old Yankeedom ? One possible idea could be with global warming and future water shortages, that the Sunbelt could be more unpleasant place to live in.
This could be a possibility 30 or 40 years from now. Though just as likely, people move to the Northwest as well.
No. The north will lose people until there are literally negative numbers of people there and the entire human population will live in suburban Dallas.
or this.