By Elizabeth Dunbar

MPR.org/90.1 FM

Environmental advocates are challenging a workaround by Enbridge Energy to transport additional Canadian crude oil into the United States while waiting for a federal permit.

The Sierra Club, the White Earth Nation and several other groups filed a federal lawsuitTuesday against the U.S. State Department. The suit alleges that the department approved an Enbridge plan to construct and operate a crude oil pipeline that crosses the U.S.-Canada border without first reviewing the environmental impacts of the project as required by federal law.

Such a review would include an assessment of whether the project would increase greenhouse gas emissions linked to climate change.

The groups said the case shows President Obama’s administration is contradicting itself on policies involving Alberta’s oil sands crude, which critics say produces more emissions than conventional crude. While the president has said his administration won’t approve a permit for the proposed Keystone XL pipeline if it increases emissions, the State Department already is allowing Calgary-based Enbridge to pump more oil into the country, the advocates said.

“It’s very, very worrisome that the State Department is allowing Enbridge to refuse to go through the standard U.S. environmental review process,” said Kieran Suckling, executive director of the Center for Biological Diversity.

The lawsuit asks the court to rule that the State Department’s approval of the new pipeline and a bypass project violate the National Environmental Policy Act until the department completes its environmental review.

At issue is the Alberta Clipper pipeline Calgary-based Enbridge Energy built through Minnesota a few years ago. Because it crosses an international border, the pipeline needed a permit from the U.S. State Department. Enbridge currently can transport up to 450,000 barrels of crude oil per day on the Alberta Clipper but wanted to increase capacity to 800,000 barrels per day.

According to the lawsuit, that kind of increase requires environmental review under the National Environmental Policy Act, and the State Department must sign off on the plan. While that process was pending, the lawsuit alleges, Enbridge built a new cross-border pipeline segment to become part of an older, existing pipeline known as Line 3. That pipeline transports the oil across the border. Once in Minnesota, the oil can move to the Alberta Clipper line, which already has state approval for the increased capacity.

When the arrangement was first announced this summer, the State Department said the plan did not need its authorization. At the time, Enbridge said the plan was temporary and said its bid for the Alberta Clipper permit had been delayed by the controversy over Keystone XL. Enbridge officials did not immediately return calls on Wednesday, and State Department officials say they do not comment on pending litigation.