$3.5 Billion

It will cost $3.5 Billion to build a seawall to protect Jacksonville, FL from climate change-induced rising sea levels, according to research from the Center for Climate Integrity. The next most expensive city to protect is New York, at $2B. On a per capita basis, the most expensive cities to protect from rising sea levels are Galveston, TX ($21,282/person) and Barnstable, MA ($20,062/person). Galveston also ranks 4th in the highest absolute cost, at $1.1B.

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