From the Globe and Mail:
The water levels of Lake Huron and Lake Michigan have been falling steadily compared with those on Lake Erie, and no one knew why.
But a major report financed by the U.S. and Canadian governments suggests an answer: The fingerprints of climate change are starting to be found in the Great Lakes, the world’s largest body of fresh water, causing a discernible drop in their levels.
The report, released Tuesday, estimated that Lake Huron and Lake Michigan have fallen about a quarter metre relative to Lake Erie since the early 1960s, with 40 to 74 per cent of the reduction due to recent changes in precipitation patterns and temperatures. Read more.