**Water temperatures, which influence sea level, are expected to rise sharply in the 21st century along the eastern United States. Redder areas on the map show projected temperatures at the higher end of the scale. (Little et al., Nature Climate Change 2015)
In the short term, flooding from this year's El Nino system could cause additional days of flooding across many U.S. coastal communities, with the worst impacts expected in the mid-Atlantic, the National Oceanic and Atmospheric Administration said in a report earlier this month.
Glacier melt and the expansion of seawater as the ocean warms acts as the main drivers of sea-level rise around the world, both today and in the future. The U.S.'s East Coast might be in particular danger, as there, the sea is rising even faster than the 8-inch-since-1980 world average, past studies have found.
http://www.weather.com/science/environment/news/massive-sea-level-rise-threatens-us-cities
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