Great Lakes

The aging pipeline carries oil and natural-gas liquids through the Straits of Mackinac, where opponents fear a spill could devastate the Great Lakes

The Michigan Supreme Court on Friday ruled that the Michigan Public Service Commission erred when it granted a key permit for the Line 5 petroleum pipeline tunnel under the Straits of Mackinac

Environmental groups have long warned an accident could cause an oil spill in the Straits, threatening the Great Lakes

State agencies in Michigan on Wednesday issued key permits for the controversial Line 5 tunnel in the Straits of Mackinac, concluding the project’s benefits outweigh drawbacks

The study used more than 40 years of data to map fluctuating PFAS levels across species in the region's food chain.

The permit is the latest step in a yearslong debate over the aging pipeline and the risk of an oil spill

Despite the record rise, most water levels on the Great Lakes are near their long-term average

Bureaucratic hurdles and high costs have prevented the offshore wind industry from developing the Great Lakes’ abundant wind resources.

Federal funds for a barrier system is halted as Army Corps of Engineers conducts broad review of projects

Using historical temperature records from weather stations around the region, researchers improved their understanding of where ice might have formed and for how long it lasted — spanning the last 120 years.