One of the most often stated pieces of drivel from the climate science community, is that sea level rise is an indication of warming temperatures. In fact, there is no such correlation.
The graph below overlays global temperatures with global sea level. For the last 8,000 years, sea level has been rising while temperatures have been falling.
How can this be?
Simple. As long as there are glaciers, and temperatures are warm enough to cause more glacial melt than new ice formation, sea level will rise. The fact that sea level is rising tells you nothing about whether the climate is warming or cooling.