earth4d
How did the Great Lakes form? Scientists think they figured it out
New research suggests an ancient hotspot helped shape the Great Lakes, challenging traditional formation theories.
USA Today22d
Great Lakes suddenly see extensive ice form. Here's how much ice there is
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.