Global warming is shrinking the Great Lakes - earth - 30 May 2007 - New Scientist Environment
Lake Superior, the largest body of fresh water in the world by surface area, is experiencing its lowest water levels since the record set in 1926. The lake is down by 34 centimetres from a year ago, and more than half a metre below its long-term mean. At least part of the drop can be attributed to a multi-year drought that has been particularly severe since 2006. More troubling, however, is evidence that global warming is driving a long-term shrinkage of this massive natural reservoir.