Posted: Friday, May 7, 2021 08:26 A major Canadian Indigenous group is adding its voice in support of a campaign by Michigan Gov. Gretchen Whitmer to shut down an oil pipeline that runs under the Great Lakes and supplies much of the fuel to Ontario and Quebec. Line 5, which runs through Michigan from the Wisconsin city of Superior to Sarnia, Ont., crosses the Great Lakes beneath the environmentally sensitive Straits of Mackinac, which link Lake Michigan to Lake Huron. The pipeline operated by Enbridge Inc. carries 540,000 barrels of light oil and natural gas liquids from Western Canada. It feeds oil refineries that provide nearly half of Ontario’s fuel supply. The remainder of the crude is pumped further east to Quebec refineries through Line 9, where it provides 40 to 50 per cent of that province’s fuel supply.