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“I was sloshing through the water [in Charleston SC] with my puppy dog, debris was everywhere,” she said. “I feel completely sunken. It would cost me around $500,000 to raise the house, demolish the first floor. I’m going to rent a place instead, on higher ground.”
Millions of Americans will confront similarly hard choices as climate change conjures up brutal storms, flooding rains, receding coastlines and punishing heat. Many are already opting to shift to less perilous areas of the same city, or to havens in other states. Whole towns from Alaska to Louisiana are looking to relocate, in their entirety, to safer ground.
The era of climate migration is, virtually unheralded, already upon America.
The population shift gathering pace is so sprawling that it may rival anything in US history. “Including all climate impacts it isn’t too far-fetched to imagine something twice as large as the Dustbowl,” said Jesse Keenan, a climate adaptation expert at Harvard University, referencing the 1930s upheaval in which 2.5 million people moved from the dusty, drought-ridden plains to California.
This enormous migration will probably take place over a longer period than the Dustbowl but its implications are both profound and opaque. It will plunge the US into an utterly alien reality. “It is very difficult to model human behaviour under such extreme and historically unprecedented circumstances,” Keenan admits.
By the end of this century, sea level rise alone could displace 13 million people, according to one study, including 6 million in Florida. States including Louisiana, California, New York and New Jersey will also have to grapple with hordes of residents seeking dry ground.
“There’s not a state unaffected by this,” said demographer Mat Hauer, lead author of the research, which is predicated on a severe 6ft sea level increase. There are established migration preferences for some places – south Florida to Georgia, New York to Colorado – but in many cases people would uproot to the closest inland city, if they have the means.
‘We’re moving to higher ground’: America’s era of climate mass migration is here






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