Global warming = rising sea levels because of melting ice caps - or does it? The ice caps mostly cover the sea, in solid form they have greater volume than in liquid. Thus the icecaps displace a signficantly greater volume of water than they create when they melt.Thus melting ice caps will cause the sea levels to stay the same - least, they may cause the sea levels to fall as themassive displacement effect the ice caps reduces. We have for some time been in an inter-glatial period - ie we are actually still in an ice age, we are just experiencing a short warm intermission of a few hundreds of thousands of years. The plunge back into the ice age is inevitable. Ghia will be free of us pesky humans and a bunch of other unfit creatures and will continue spinning in her own sweet way.