The legacy of mercury in Lake Superior

The northern Great Lakes are praised for being clean, but these aquatic systems don't exist in a vacuum. Contaminants still find their way into lake water and sediments. Mercury is of particular interest because of its toxicity ...

Great Lakes water level slump over, future unclear

Scientists say the longest period on record of abnormally low Great Lakes water levels has ended, but it's uncertain whether the recovery is temporary or the beginning of a new long-term trend.

Great Lakes welcome rising water levels

After years of parched shorelines, water levels in the Great Lakes have come rushing back. The crowds that flock to the Superior shoreline this summer are finding harbors deeper and beaches narrower than they've been in 15 ...

Lake Superior may see coldest surface water since 1979

(Phys.org) —Surface-water temperatures above the deepest parts of Lake Superior are expected to be at least 6 degrees Fahrenheit colder than normal by August, delaying the onset of the evaporation season and raising water ...

NASA satellite sees great freeze over Great Lakes

At night, as cold settles in, lake ice creaks and groans. It's been excessively cold, and I camped exposed on the snow-swept surface. Other than the lack of vegetation and the sounds at night, you'd never know you were on ...

Minnesota's iconic moose population is falling

Fly over northeastern Minnesota with "Sky Dan" and you'd see a moose. One time, he spotted 15 of them during an hour flight. The pilot was so confident, he even offered those on his aerial tours a money-back guarantee.

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