Michigan's environmental agency said Friday it has approved construction of an underground tunnel to house a replacement for a controversial oil pipeline in a channel linking two of the Great Lakes.

A federal judge has ordered a government agency to take a closer look at pipeline company Enbridge's plans for dealing with potential oil spills in the waterway connecting Lakes Huron and Michigan.

A U.S.-Canadian team is preparing for another mission to relocate grey wolves to Isle Royale National Park in Michigan from a second Lake Superior island, where the predators are in danger of starvation after gobbling up a caribou herd.

Fortifying an Illinois waterway to prevent invasive carp from using it as a path to Lake Michigan could cost nearly three times as much as federal planners previously thought, according to an updated report.

The Trump administration moved Tuesday to roll back an Obama administration policy that protected more than half the nation’s streams from pollution.

President Donald Trump wants to eliminate federal support of a program that addresses the Great Lakes' most pressing environmental threats.

Enbridge announced the equipment buys as it kicked off a three-day public relations tour in northern Michigan.