New research suggests an ancient hotspot helped shape the Great Lakes, challenging traditional formation theories.

Water levels of the upper Great Lakes are expected to drop to near or significantly below their historical summer averages ...

The health of Great Lakes will be in focus when the documentary called "All Too Clear: Beneath the Surface of the Great Lakes" is shown in Door County.

This is a bit of a departure from some of GLOS’s past work, like a website called Seagull that aggregates sensor-based, ...

The lake sturgeon is the oldest and largest native fish species in North America’s Great Lakes. Lake sturgeons can grow huge. It’s not unusual to find one six feet long and 200 pounds.

The small plastic particles are "ubiquitous" in Great Lakes water, sediment, plants, fish and beaches, an international panel ...

The next few weeks look quite a bit milder than last week, but still near normal temperatures. The Great Lakes ice cover will continue to grow, but probably at a much slower pace. It will take a ...

Instead of finding snowy owls Tuesday morning, Debbie Porter and Steve Haupp found Lake Superior sea smoke and a pileated woodpecker at Brighton Beach. Debbie Porter, left, admires a pileated ...