Great Lake, Great Mystery

Thanks to reader Andy for the headsup on this interesting story about Lake Superior and the changes it is going through. Climate change? Maybe, but scientists are still uncertain what is causing the lowering of the water level and other changes. Precipitation has tapered off across the upper Great Lakes since the 1970s and is nearly 6 inches below normal in the Superior watershed the past year. Water evaporation rates are up sharply because mild winters have shrunk the winter ice cap - just as climate change computer models predict for the next half-century. FULL STORY...