Valero and Tesoro…names that sound like hill towns in Tuscany rather than the monikers of two mega-polluting oil companies who put up millions to do away with California’s landmark AB 32 greenhouse gas reduction law. 

Well, now Valero and Tesoro have earned new dishonor by landing in the top third of of the University of Massachusetts’ list of the 100 most polluting companies in America. Valero ranks 12th while Tesoro ranks 32nd. Come on Tesoro, we know you can do worse.

Posted on April 19, 2010


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