Interesting points. Thank you for considering my theories. Truth is if the ice bodies of the Arctic Ocean, Greenland and Antarctica continue to melt the corresponding rise in sea level will reshape our world in a huge way. It happened at the end of the Ice Age when the land bridge linking Asia and North America disappeared underwater and is poised to do it again. Sorry Alaska but many of our coastal areas will be lost including some major human population centers. All you have to do is look at a map of Alaska and imagine it without any of today's land lower than 100 feet in elevation. Could be soon. Could be a thousand years from now. Food for thought in either case...