Study Finds Elevated Greenhouse Gases From Canadian Crude

A new peer-reviewed study funded by the U.S. Department of Energy says oil extracted from Canada’s oil sands produces greenhouse-gas emissions that are an average 20% higher than for conventional U.S. crude. The findings provide ammunition to foes of the proposed Keystone XL pipeline and other critics of surging Canadian oil output. The study was conducted jointly by the DOE’s Argonne National Laboratory, researchers at Stanford University and the Institute of Transportation Studies at the University of California, Davis. It calculated greenhouse gas-emissions from oil- field extraction to tail pipe, a so-called well-to-wheel analysis.

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