Maps, data show how near-term climate change could affect major port cities on America's East Coast

What would happen if East Coast shipping ports were underwater and out of operation? Supply chains across the nation rely on these ports transporting trillions of dollars' worth of goods each year. With experts predicting an average sea level rise of 2 feet by 2100, flooding is a reality that most seaports and beach communities will have to contend with. Now, a new climate study shows that some parts of the coast are likely to change even sooner.    

The study, by the United States Geological Survey, used satellite data to show how the shoreline in the northeastern U.S. might change within the next decade or so.