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Michigan Supreme Court rejects permit for Enbridge oil pipeline under Great Lakes

The 6-1 ruling requires regulators to redo the environmental review after finding gaps in the permit analysis and alternatives assessment.

  • On Friday, the Michigan Supreme Court vacated a key permit for the proposed Enbridge Energy Line 5 tunnel beneath the Straits of Mackinac, ordering the Michigan Public Service Commission to redo its environmental review.
  • The 6-1 ruling found the MPSC failed to consistently examine alternatives to the project or adequately consider how continued pipeline operation impacts public trust resources, such as the Great Lakes.
  • Justice Elizabeth Welch wrote that regulators erred by not determining if the tunnel would extend the lifespan of the 73-year-old pipeline, creating further environmental harms.
  • Enbridge spokesman Ryan Duffy expressed disappointment over the project's long review, while Bay Mills Indian Community President Whitney Gravelle praised the decision as a victory for treaty rights and water protection.
  • The existing pipeline will continue transporting about 540,000 barrels of oil daily across the Straits while the commission conducts its new review, likely delaying tunnel construction for years.
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34 Articles

Lean Left

The Michigan Supreme Court is holding back a tunnel project under the Great Lakes for an Enbridge pipeline linking Wisconsin to Sarnia, Ontario.

·Montreal, Canada
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Associated Press NewsAssociated Press News
+22 Reposted by 22 other sources
Lean Left

Michigan Supreme Court rejects permit for Enbridge oil pipeline under Great Lakes

The Michigan Supreme Court has ordered state regulators to reconsider a permit for a tunnel carrying an oil pipeline under the Great Lakes.

·New York, United States
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  • 42% of the sources lean Left
42% Left

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Michigan Public broke the news in Ann Arbor, United States on Friday, July 31, 2026.
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