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Around 450,000 owners of manipulated diesel vehicles have launched a mass lawsuit against Volkswagen demanding compensation against the German car giant
Some 385,000 people worldwide died prematurely in 2015 from air pollution caused by vehicle exhaust emissions, a US study has found, singling out diesel engines as the main culprit.
Industry wants to curb nitrogen oxide emissions from diesel engines using modern catalytic converter technology. One possibility is the admixture of AdBlue, which contains urea. But how exactly does it work?