Erosion caused by dredging and other human activities on the St. Clair River is causing Lakes Huron and Michigan to lose 2.5 billion gallons of water daily, according to a private Canadian study.
Like a bathtub drain, the artificially deepened river is funneling vast amounts of water into Lake Erie, where it flows east to Lake Ontario and the St. Lawrence River before eventually being lost to the Atlantic Ocean, says the study released Tuesday.