As of March 16, average ice cover across the lakes was roughly 13.5%. Lake Superior was at 9.2%, and Lake Michigan was at 10.7%.

Time, water, and geologic forces have converged to create underwater sinkholes where oxygen-poor and sulfur-rich groundwater support prolific microbial mats resembling life on early Earth.

The Great Lakes reached their highest ice coverage in three years on February 22, hitting 52.23%. However, a warming trend caused the ice coverage to plummet to 28.95% within a few days.

This Great Lakes ice season has proven to be much better than the past few years — in fact, it's been relatively normal. So far, the 2024-'25 ice season has measured up to the slightly below to ...

The Great Lakes reached their highest ice coverage in three years on February 22, hitting 52.23%. However, a warming trend caused the ice coverage to plummet to 28.95% within a few days. Lake Erie ...