Nitrogen oxide from diesel vehicles killed a lot of people in 2015, study says

Enlarge (credit: Rishabh Mishra) When Volkswagen’s diesel scandal broke in 2015, much was made of how the cars spewed the pollutant nitrogen oxide (NOx) in dramatic excess of regulators’ standards during real-world driving. But that wasn’t what ultimately got VW Group in trouble with officials from the US Environmental Protection Agency (EPA) and European Union […]