Enbridge

A panel of judges in Lansing heard arguments Tuesday morning concerning a state permit that’s necessary for the proposed Line 5 tunnel in the Mackinac Straits.

The Wisconsin Department of Natural Resources is investigating a 69,000 gallon oil spill from Enbridge Line 6, about 60 miles west of Milwaukee.

At protests in Lansing and other cities, activists were less focused on the events of 14 years ago than on the current fight over the future of Enbridge’s Line 5.

The department also stressed the importance of a 1977 pipeline treaty between the U.S. and Canada, but didn't say what the court should do about it.

This week: An impasse over the future of the air show at the National Cherry Festival. And Elk Rapids high school students make the prom a little more climate friendly.

This week: Michigan tribes say a federal lawsuit out of Wisconsin could affect their sovereignty, summer roadwork already getting started in Traverse City, and Kate Botello takes us to the spelling bee.

Last June, during a guest lecture event in Petoskey featuring an Enbridge Energy spokesman, a melee broke out between the North Central Michigan College staff and a group of protesters.

The motion was passed behind closed doors during a special meeting Friday after an inquiry was requested in a letter from the Association of Faculty and Professional Staff.

Tribal Sovereign Nations continue to push for the pipeline’s decommissioning. Dozens of them — including in northern Michigan — blasted Canada for its continued support of the project in a report to the U.N. last month.