Sea levels are rising faster than previously anticipated—and it's only going to get worse. br br Sea levels are rising faster than previously anticipated—and it's only going to get worsea. brbrAccording to NASAa, sea levels have risen an average of three inches in the past 23 years—with some locations measuring rises as high as nine inches since 1992. brbrSteve Nerem of the University of Colorado, Boulder, and lead of NASA's Sea Level Change Team notesa, "it’s pretty certain we are locked into at least three feet of sea level rise, and probably more...but we don’t know whether it will happen within a century or somewhat longer.