Southern California environment news and trends

California oil refineries produce most greenhouse emissions in U.S.

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A new report by the Union of Concerned Scientists reveals that California oil refineries emit 19 to 33 percent more greenhouse gasses than any other comparable region in America.

According to Inside Climate News, while California refineries have worked hard over the last 17 years to combat pollutants, dirtier and harder to clean types of crude oil (such as Canadian tar sands oil) have undone any progress by forcing the facilities to work harder to process — and create more CO2 emissions. California refineries are also known for removing sulfur earlier in the cleaning process, which contributes to the elevated emissions.

“With respect to emissions intensity, California officials have been running around claiming California’s oil refineries are so much more energy efficient, that they are just cleaner… Obviously they were wrong,” said Greg Karras, a senior scientist with Communities for a Better Environment who wrote the study.

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