4.2 million Americans could be displaced by rising sea levels this century -- see if your county is at risk

A study published in Nature Climate Change projects that over 4 million residents of the continental US could be affected if sea levels rise 3 feet by the end of the century.

The researchers calculated the number of at-risk residents by looking at coastal areas expected to be inundated by sea-level rise and estimating the population of those regions in 2100 using population-trend data.

Alex Kuzoian contributed reporting on a previous version of this article.

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