Greenland, you say?  That is interesting.  In 1942, a squadron of P-38 fighters was forced to land on an ice field where the planes were abandoned.  The planes were found 50 years later buried under 268 feet of ice and snow.   Greenland's ice cap increased significantly during those 50 years. Precipitation, evaporation, freezing and melting and condensation are all part of the hydrological cycle - a never-ending global process of water circulation from clouds to land, to the ocean, and back to the clouds.  I do not recall reading or hearing about sea levels decreasing while the ice cap increased, so why would sea levels rise as the ice cap decreases?