13.1 Million US Coastal Residents Could Face Flooding Because of Rising Sea Levels

As many as 13.1 million people living along U.S. coastlines could face flooding by the end of the century because of rising sea levels, according to a new study that warns that large numbers of Americans could be forced to relocate to higher ground.

The estimated number of coastal dwellers affected by rising sea level is three times higher than previously projected, according to the study published Monday in the science journal Nature Climate Change.