Whats Up With Lake Superior?
Mighty Lake Superior Mystifies Scientists By JOHN FLESHER, AP Posted: 2007-07-29 18:13:34 MARQUETTE, Mich. (July 29) – As the research boat bobs up and down on gray, choppy Lake Superior, Michigan Tech University chemist Noel Urban and two students drop a metal cylinder over the side to retrieve a water sample from the bottom. What’s Happening to Great Lake? Raymond K. Gehman, National Geographic / Getty Images The surf rolls up on the Apostle Islands in Lake Superior. Something seems amiss in the deepest and coldest of the Great Lakes. The water level is suddenly dropping and its temperature is quickly heating up, puzzling experts. They are measuring carbon dioxide content — an unspectacular statistic by itself, yet an important piece of a highly complex puzzle. “It helps us develop a model that can say what’s going to happen as the lake warms up,” Urban says. Plenty of people are wondering the same thing. Something seems amiss with mighty Superior, the deepest and coldest of the Gre
