[Dion]

A war is looming between Alberta and the federal government over pollution caused by oil sands development that will far surpass any previous federal-provincial battle in its political and economic stakes, former Alberta Premier Peter Lougheed predicted Tuesday.
Mr. Lougheed told a Canadian

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He said that Alberta's desire to bypass toughened federal environmental laws will cause considerable dispute within the province itself, and will “cause significant stress to Canadian unity.

"My surmise is that we're into this constitutional legal conflict soon,” he said. “And my surmise is that – and this is strong stuff – national unity will be threatened if the court upholds federal environmental legislation and it causes major damage to the Alberta oil sands and our economy.”