"the cost of doing this for all at-risk Americans would be eye-watering. Estimates range from $200,000 to $1m per person to undertake a relocation. If 13 million people do have to move, it seems fantastical to imagine $13tn, or even a significant fraction of this amount, being spent by governments to ease the way.
“As a country we aren’t set up to deal with slow-moving disasters like this, so people around the country are on their own,” said Joel Clement, a former Department of the Interior official who worked on the relocation of Alaskan towns."