In this Oct. 29, 2012, file photo, seawater floods the entrance to the Brooklyn Battery Tunnel in New York in the wake of Superstorm Sandy. New satellite research shows that global warming is making seas rise at an ever increasing rate. Scientists say melting ice sheets in Greenland and Antarctica is speeding up sea level rise so that by the year 2100 on average oceans will be two feet higher than today, probably even more. (AP Photo/ John Minchillo, File)