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Fight Against Line 5 Pipeline

A ticking time bomb sits beneath the Great Lakes that threatens drinking water for 40 million people.

The Latest: Michigan Supreme Court Orders More Rigorous Review of Line 5 Tunnel Case

The Michigan Supreme Court handed down a decision on July 31, 2026, siding with environmental and Tribal groups in their combined cases challenging Enbridge Energy’s efforts to bore a tunnel beneath the Straits of Mackinac to house its Line 5 oil pipeline. Read the press release.

Watch the press briefing following the decision in our recap video.

By The Numbers: The Facts on Line 5

2.3 Mil.

Gallons Already Spilled

73

Year-Old Pipeline Under the Straits

2.7 Mil.

Tons of Climate Emissions Annually

Whiter: Finish the Job on the Line 5 Tunnel

Sign the Petition
Michigan Climate Action Network logo on a blue background.

Protecting Our Water and Climate

As a founding member of the Oil & Water Don’t Mix (OWDM) coalition, we’ve worked tirelessly to expose the climate impacts of the Line 5 tunnel, challenging Enbridge in court, and mobilizing communities across Michigan.

We refuse to let Michigan become a sacrifice zone for corporate profit. Together with our partners and communities, we are leading the charge for clean water, a livable climate, and a just future, because the risks of Line 5 are not just environmental but personal. They impact our homes, our families, and future generations. We believe in a future where the Great Lakes remain pristine, where Indigenous sovereignty is honored, and where corporate greed no longer dictates our energy choices. Every action you take helps us move closer to that vision. Join us in this fight—because Michigan deserves better than Line 5.

Oil & Water Don't Mix logo, environmental campaign for Great Lakes & climate protection.