Gary Doer says shipping oil by rail south of the border has skyrocketed in the last two years with a resulting increase in greenhouse gas emissions.
He says that's why he will continue to work to persuade the U.S. government to approve the Keystone pipeline from Alberta to Texas.
He says it helps that decision-makers in every U.S. state through which the line would run are pushing for its approval.
Doer made the comments at a luncheon speech in Edmonton.
He lauded Premier Alison Redford for going to Washington to lobby for Keystone and to outline Alberta's efforts to reduce emissions that lead to climate change.
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