Scientists baffled by decline in water levels of upper Great Lakes

Canadian Press: Canada and the United States are launching a $17.5-million study to determine why water levels in the upper Great Lakes have declined to near-record lows. The study by the International Joint Commission will consider a number of possible causes, from climate change to erosion caused by dredging in the St. Clair River. Environment Minister Rona Ambrose announced $500,000 for the study last week. But officials say that is just the first installment in what will be a major, ...Link