This week on Points North, we examine propane needs in the Upper Peninsula. Do yoopers need Line 5 for propane, or would they survive without the pipelines? Tribal nations, Michigan’s governor and environmental groups are all calling for a shutdown of Line 5: the pipeline that carries oil underneath the Straits of Mackinac. They say the pipeline, which is 60-plus years old, poses too great a risk of rupturing. The pipeline doesn’t just carry oil — its liquid mix includes propane that is