Researchers at the University of Minnesota Duluth found the previously-undiscovered microorganisms hiding in the tar-like goo oozing out of a research vessel’s rudder shaft.

High-powered boats designed to create big waves are dividing watersports fans and lakefront residents angry about property damage and erosion. A battle is brewing over whether to regulate them.

The Trump administration’s emergency order keeping a Michigan coal power plant open is generating optimism from some Republicans and angst from environmentalists. Both camps wonder just how long the plant stays open — and if others are next.

Extreme erosion along the Great Lakes coasts grabbed lawmakers’ attention and inspired proposals to pull development back from the shoreline. Five years later, regulatory gaps still leave some communities more vulnerable than others.

Great Lakes mussels are giving scientists a clearer picture of where the chemicals are concentrated, according to a recent report.

Michiganders returned less than three-quarters of their 10-cent bottle deposits last year, the lowest redemption rate on record. In all, $116 million went unreturned. A ballot measure may be in the works.

As May’s cooler temperatures give way to summertime warmth in Michigan, the Great Lakes are slightly cooler than usual but warming. But where are Michigan’s warmest waters?

After years of delays, Flint is nearly done replacing the city’s lead-containing water pipes. But residents and activists aren’t sure they can celebrate yet.

Michigan, Ohio and Ontario failed to reduce the total phosphorus entering Lake Erie in 10 years. State officials and environmentalists are butting heads on where to go from here.

Nearly two months after an ice storm slammed northern Michigan, state and federal aid to farmers has yet to arrive. Now, local organizers are taking matters into their own hands.