A rollercoaster that once sat on the Funtown Pier in Seaside Heights, N.J., rests in the ocean on Wednesday, Oct. 31, 2012 after the pier was washed away by superstorm Sandy.; Credit: Julio Cortez/AP Nathan Rott | NPR When Hurricane Sandy swept up the eastern seaboard in 2012, it left a trail of damage from Florida to Maine. Subways were inundated in New York City. Hurricane-force winds tore across New Jersey. Blizzard conditions walloped Appalachia. The hurricane — also known as Superstorm Sandy — caused an estimated $70 billion in damages in the U.S., mostly from flooding. And while scientists have long believed that some of the carnage was attributable to a warming climate, it’s been unclear just how much of a role human-caused warming played in the storm’s impacts. New research, published Tuesday in the journal Nature Communications, puts a dollar amount on some of those damages and it’s a startling figure. Using flood maps and sea-level rise measurements, researchers found that human-induced sea-level rise caused an estimated $8 billion in excess flooding damage during Hurricane Sandy and affected an additional 70,000 people. “I often hear people say when we’re trying to help them adapt to increasing coastal flooding, ‘Well, it’s not going to happen in my lifetime, the sea-level rise won’t happen in my lifetime,'” said Philip Orton, a co-author of the study from the Stevens Institute of Technology in New Jersey. “But it’s already happening to people. It’s already here.” Sea levels at the tip of Manhattan have risen about 8 inches since 1950, according to the National Oceanic and Atmospheric Administration. Estimates range for how much additional sea-level rise is likely to occur, but on average, the expectation is that by mid-century water levels could rise by more than a foot in New York City, compared to the year 2000. In worst case scenarios, in which humanity does not significantly cut its climate-warming greenhouse gas emissions and the world’s ice sheets