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At some point you’ll have to do it without insurance or mortgages though. There are places on the island of Hawaii where neither are available due to volcano ri

• spwa4 5mo ago
  That's easy to do. It will simply become impossible to convince people to invest in their houses. Even force of law will fail. Go check out the "Maas-vallei" in the south of the Netherlands to see cities (10+) that really, really shouldn't be located where they are (medieval foundations were built on the shores and never replaced. They've eroded away decades ago and still aren't being replaced, plus they've got more plant roots in them than forest soil). And Belgium has it worse. It isn't even the result of rising sea levels. It's just too many buildings. Too little places for the river to go in such flat terrain. People live there, are unwilling to move, are unwilling to upgrade their houses, and every 10 years or so, a flood comes, things collapse, often 5-10 people die, government pays for the houses and bridges that collapse and nothing changes until the next flood comes. Sometimes the houses are "repaired" (never the foundations of course) and it's rented out, usually to young families who can't afford better. I'm over 50, and I remember this happening when I was 5. Best of luck to New Orleans.