Deepershade, no offense but that's an incredibly half-baked theory (unless you're being facetious). The cold water introduced by lots of polar ice melting wouldn't even begin to touch the energy reserves stored in the oceans unless they melted in matters of like, a day. Plus all the cold water would sink to the bottom of the oceans (like it already does) and the surface, which is what affects climate the most, would be unscathed.