Hmmm. Time for a new dictionary, Claymore. The Merriam-Webster online dictionary (http://www.m-w.com) defines it thus:Main Entry: ice cap
Function: noun
Date: circa 1860
1 : an ice bag shaped to the head
2 : a cover of perennial ice and snow; specifically : a glacier forming on an extensive area of relatively level land and flowing outward from its centerOf course you realize that when people say "ice caps" they are using it as shorthand for "polar ice caps" -- of which there are two, a floater at the top, and a land-based one at the bottom.
When we talk about them melting, we're talking about DUE TO GLOBAL WARMING TRENDS. Which would tend to melt both of 'em, not just the floater.
I would have thought all this was pretty obvious but there I go assuming again.
Alex