Lake Ontario had 86.2% ice coverage in 1979. In 2002, the Great Lakes basin had just 11.9% ice coverage, NOAA said. In 2012, Lake Superior had 8.5% coverage. In 2002, Lake Michigan had 12.4% coverage.
In 2002, the Great Lakes basin had just 11.9% ice coverage, NOAA said. In 2012, Lake Superior had 8.5% coverage. In 2002, Lake Michigan had 12.4% coverage. In 2012, Lake Huron had 22.8% coverage.
"In a nutshell, it's a complicated issue and it really is kind of a foggy crystal ball into the future," said Ashton. A 2019 report by Canadian and American scientists suggested the Great Lakes basin ...