Line 5 opponents urging White House to reject Canada’s ‘audacious’ treaty gambit
WASHINGTON — Environmental activists in the United States are seizing on Canada’s decision to invoke a 44-year-old treaty with the United States as an “audacious,” misguided and misleading gambit aimed at short-circuiting Michigan’s effort to shut down the Line 5 cross-border pipeline.
Oil & Water Don’t Mix, a coalition of Michigan environmental and Indigenous groups that includes the Sierra Club and the Michigan Climate Action Network, said Tuesday it has a 33,000-signature petition that it plans to circulate among U.S. lawmakers this week.
The petition urges U.S. President Joe Biden to support the state of Michigan and Gov. Gretchen Whitmer in their legal effort to shut down Line 5, a 68-year-old pipeline that crosses beneath the Great Lakes to deliver crude oil and natural gas liquids from Canada to the U.S. Midwest.
The state has revoked the 1953 easement that allows Calgary-based owner Enbridge Inc. to operate Line 5, citing the risk of a catastrophic spill in the Straits of Mackinac, an ecologically sensitive waterway that links Lake Michigan and Lake Huron.


