Emissions from cars can be a high-stakes issue, as last year’s Volkswagen scandal demonstrated. The pressure is on to meet tightening fuel emissions standards, and in that case it led the carmaker to cheat on emissions tests. But wrongdoing aside, how are automakers going to realistically meet future, tougher emissions requirements to reduce their impact on the climate? Researchers report today that a vehicle’s cold start —at least in the case of gasoline-powered cars —is the best target for future design changes.
Watch as Greg Drozd, of the University of California, Berkeley, offers a deep dive on this topic and answers some pressing questions: