Industrials

Pipeline foes criticize State Department, ask judge to block Alberta Clipper capacity upgrade

A federal judge heard conflicting arguments Thursday on whether he should block a capacity expansion on the Alberta Clipper oil pipeline or allow a temporary workaround that lets Enbridge Energy move hundreds of thousands of barrels per day of Canadian tar sands crude across the border without triggering the kind of environmental review that has held up the proposed Keystone XL pipeline.