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• "If Keystone XL is not built, it's clear that the oil will move to market by truck, rail and tanker, which will significantly add to global greenhouse gas emissions to move the product," Girling said. Pipelines far safer than any other option, he added. • Canada's natural resources minister, Joe Oliver, said Tuesday the proposed pipeline meets Obama's requirement that it not lead to a significant increase in greenhouse gas emissions. • Oliver pointed to the State Department report, which he said concluded that the pipeline "is unlikely to have a substantial impact on the rate of development in the oil sands" of Alberta, where the pipeline would begin. • The pipeline would carry 800,000 barrels of oil a day across six states to refineries along the Gulf Coast. A southern leg from Cushing, Okla., to ports near Houston, already has been approved and construction is proceeding. • Supporters say the pipeline would create thousands of jobs, help lower fuel prices and bolster North American energy resources. • Opponents call the project a "carbon bomb" that would carry "dirty oil" that could trigger global warming. They also worry about a spill. Converting tar sands into oil uses as much as 15 percent more energy than conventional oil production.
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