Only an extremely dull mind like yours, cwjie, would find that cartoon entertaining. The potential effects of global warming, rising sea levels, shifting weather patterns, etc., present a real and present danger for the entire world. If you don't think that things like rising temperatures and availability of fresh water won't make a difference to agriculture and populations in already crowded areas of our world, you must be living in a cave. Or you soon may be if the direst predictions of climate change take place. If not you, your offspring. But then, perhaps they're used to the idea of living as savages.