When the rivers start to dry up or are diverted, the lakes’ levels of salinity increase. [To view photos, videos and interactive maps, click here.] Get Top Stories newsletter.

Though Michigan's Great Lakes may not see a true tsunamis, seiches and meteotsunamis can inundate coastal areas quickly.

Beneath the surface of waters of the Great Lakes’ connecting channels is an aggressive invader threatening ecosystems and communities: Hydrilla.

GLOS estimates the cost of mapping all five Great Lakes in high density to be $200 million. That's quite the modest investment relative to the value the lakes provide. The Great Lakes basin supports ...

At our lowest data point recently on February 11th, we were at a dismal 2.69% for the entire Great Lakes basin. This is not only a low point in a down ice year.

Biinaagami — meaning pure, clean water in the Anishinaabe language — makes it its mission to inspire the kind of collective action Doreen advocated. To that end, it also attended the water gathering ...

Officials recorded below-average water levels compared to 2024 for the Great Lakes, ranging from 1-8 inches lower. Here's what's expected in June.

Now, 40 years later, Boehme wants to launch another treasure hunt. As executive director of the Great Lakes Observing System, she's leading a campaign to map every meter of the lakes' bottom.

Porter County residents look at maps during a 2016 public meeting about the proposed Great Lakes Basin Transportation railroad at the Aberdeen Manor ballroom in Valparaiso. Jonathan Miano, The Times ...