The Keystone XL pipeline
President Obama appears to be nearing a decision on approving what is called the Keystone XL pipeline. This proposal by the TransCanada Corporation calls for a pipeline to be built that will, if Obama gives the green light, transport “heavy oil” produced from tar sands in the Canadian province of Alberta to refineries in the U.S. Midwest and along the Gulf Coast.
The U.S. president had indicated that his approval would depend on a State Department report on the proposed pipeline’s effects on the Earth’s climate. Opponents of the pipeline pointed out that the refining of heavy oil releases more carbon dioxide into the atmosphere than the refining of “sweet oil” does.
In late January, the State Department released its report, which claimed that the pipeline would have little if any adverse effect on the climate. The State Department reasoned that even if the pipeline was not built, the Alberta tar sands would be used for oil production anyway. The resulting heavy oil, according to the State Department, would in the absence of the XL pipeline be transported by rail. So, the State Department concluded, there would be little adverse effect from the proposed pipeline project. These conclusions put heavy pressure on Obama to approve the construction.
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