“Hundreds of American cities are already locked into watery futures and we are growing that group very rapidly.”

That’s the message from Dr. Ben Strauss, the lead author of a new analysis of climate change data that shows the amount of carbon pollution already in the atmosphere could lead to “more than 4 feet of sea level rise past today’s levels” which would be enough, at high tide, to “submerge more than half of today’s population in 316 coastal cities and towns (home to 3.6 million) in the lower 48 states.”

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