I have pictures of Greenland in the year 1932 and there is very little Ice and a great deal of land being farmed. Oh yes and I forgot the sea level is the same now as it was then. A simple experiment will explain this. Simply take a full glass of water. Carefully add an Ice cube. When it he completely melted the glass will sill be full and there will be no water has spilled from the glass. Simply said the entire North Pole ice cap could melt and there would be no appreciable rise in the level of the oceans. Let the glass full of water answer this. It's displacement.