The Financial Post reports in its Thursday, Nov. 13, edition that an Enbridge plan to up the flow of oil from Alberta's oil sands to Wisconsin should be blocked pending the results of an environmental impact study, conservation and American native groups said in a lawsuit against the United States government. A Bloomberg dispatch to the Post reports that Enbridge's plan calls for augmenting its Alberta Clipper pipeline by shifting crude to an adjacent pipeline north of the American border, then back again after both conduits cross the frontier, avoiding the need for U.S. government permission that would be required of new lines. Enbridge told the government of its plans earlier this year. When the project became publicly known in August, it was immediately criticized by environmental groups including the Sierra Club and National Wildlife Federation, two of eight organizations that filed the complaint Wednesday in federal court in Minneapolis. "The scheme to nearly double Alberta Clipper's capacity would put the pipeline on par with the controversial Keystone XL pipeline and significantly increase the amount of toxic, highly polluting tar sands crude being moved into the U.S.," the suing groups said Wednesday.