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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