A 2016 VW Golf TDI undergoes emissions testing at the California Air Resources Board lab in El Monte. CARB researchers helped uncover cheating by Volkswagen.
A 2016 VW Golf TDI undergoes emissions testing at the California Air Resources Board lab in El Monte. CARB researchers helped uncover cheating by Volkswagen. Patrick T. Fallon Bloomberg
A 2016 VW Golf TDI undergoes emissions testing at the California Air Resources Board lab in El Monte. CARB researchers helped uncover cheating by Volkswagen. Patrick T. Fallon Bloomberg

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November 23, 2015 4:00 PM

VW scandal holds important climate lessons

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