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Pressure Mounts to Restore Great Lakes Water Levels

The St. Clair River is the primary outflow of the Lakes Michigan and Huron, and has been heavily dredged for over a century leaving the two great lakes nearly 2 feet lower.

Lake Michigan and Huron are actually one body of water connected at the Straits of Mackinac. The depth of the lakes are in constant flux because of a combination of factors, including precipitation levels and evaporation rates as well as the amount of water flowing into them from Lake Superior down the St. Marys River and out of them through the St. Clair.

A dredging problem on the St. Clair was completed in the early 1960s and had exposed the riverbed to severe and ongoing erosion that helped trigger a massive and increasing water loss. Now, an organization of 90 mayors representing more than 15 million residents in cities across the Great Lakes region are coming together to ask the Joint Commission which advises the U.S. and Canadian governments on boundary waters issues to further investigates options to raise lake levels.

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Excessive Nutrients Damaging Great Lakes Region - Soupy blue-green algae blooms in the Great Lakes is an ominous sign of suffering water quality that poses health risks for pe3ople who depend on the lakes for drinking water, food, and recreation, according to a U.S. – Canadian report. Excessive levels of nutrients such as phosphorus are producing some of the worst cases of eutrophication – runaway growth of algae and other aquatic plants – since the 1970’s.

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