The melting glacier is the poster boy of global warming, but Nordic countries might be able to use all that extra water flow to boost their hydroelectric industry. "It's not surprising that the warming effects of climate change can be beneficial for a cold country like Iceland," says Tómas Jóhannesson, a geophysicist at the Icelandic Meteorological Office. In a recent study of the influence of climate change on hydro-resources in Iceland, Jóhannesson and other researchers project a 25 percent increase in water runoff by the end of the century, resulting in a 45 percent increase in potential power production. This benefit isn't permanent, though. Researchers estimate that, like the glaciers, the extra power from runoffs will disappear in 100 to 200 years. Carpe diem.