NASA, the National Aeronautics and Space Administration, has over 20 years of data on sea level rise in the oceans of the world. They give regular public updates and you will hear from four of their scientists who reported in a teleconference on August 26, 2015.
Sea level rise, NASA scientists say, is already occurring. The open question is just how quickly the seas will rise in the future. The consequences of global sea level rise could be more serious than the worst-case scenarios predicted by the dominant climate models and the IPCC, which don't fully account for the accelerating breakup of ice sheets and glaciers. With: -- Michael Freilich, director of NASA's Earth Science Division -- Steve Nerem, lead for NASA's Sea Level Change Team at the University of Colorado at Boulder -- Eric Rignot, glaciologist at the University of California, Irvine and JPL, Jet Propulsion Laboratory in Pasadena, California -- Josh Willis, oceanographer at NASA's Jet Propulsion Laboratory in Pasadena, JPL, California The link of that NASA conference on Sea Level Science is https://www.youtube.com/watch?v=vDdNxb2xVBU