A Team Canada approach is needed to protect Enbridge’s Line 5 and the thousands of local jobs it supports, says Marilyn Gladu. Canada in 2021 invoked a 1977 treaty to keep Line 5 in operation. The 540,000 barrel a day pipeline runs from Superior, Wis., across Michigan and into Canada at Sarnia. Michigan’s Supreme Court Friday ordered state regulators to reconsider a permit that would allow Enbridge to upgrade the 1,038-kilometre Line 5 with a tunnel under the Straits of Mackinac. “It’s definitely worth considering that project because I do think the threats to Line 5 will continue,” she said.