Study on Great Lakes erosion dredges up controversy
Thursday, December 17, 2009 - 11:21
in Earth & Climate
The Great Lakes aren't as great as they once were. A U.S.-Canadian study released Tuesday reveals that unexpected erosion in the St. Clair River following a 1962 dredging project has permanently lowered Lakes Michigan and Huron by as much as 5 inches. That is in addition to the 16-inch loss previously blamed on navigational dredging and riverbed mining in the St. Clair, the main outflow for the two lakes.