Hmmm, I have to disagree with you, i believe that Global Warming and such are happening naturally, but we're speeding it up, the Polar Ice Caps have definitely receded, there's no real doubt about that, but this is just like religion, to what you said; "I find it hard to belief that people would automatically accept what was being told to them without finding at least a couple more sources." people believe in their god, but have never seen them, well, if that's okay then people can believe that Global Warming, PICs are melting, ect. without an uber amount of facts. As for them covering the earth, if the earth is heating up, how is the ice going to grow??? I don't necessarily see that happening, unless you're talking about the water, oO that's going to be horrific.