Why is Sea Level Rising? We Asked a NASA Scientist

Why is sea level rising? Global sea levels are rising as a result of human-caused global warming, with recent rates being unprecedented over the past 2,500-plus years. NASA JPL’s sea level rise expert Ben Hamlington explains how our warming planet is causing sea levels to rise. Learn more about how NASA monitors sea level rise: http://sealevel.nasa.gov/understanding-sea-level Producers: Jessica Wilde, Scott Bednar Editor: James Lucas Credit: NASA