Sea level is projected to rise in New York City and the lower Hudson by 15-75 inches by 2100. Sea level rise leads to coastal flooding, which can impact public and private infrastructure, water quality, energy systems, and public health.
Coastal flooding is also caused by storm surges that occur from extreme events, which are occurring with increasing frequency and intensity. In 2012 storm surge from Hurricane Sandy reached over eight feet above ground level in some areas. Coastal flooding from storm surges can endanger lives and destroy property.