The yellow school bus is a social icon. It projects an image of bright eyed children eagerly anticipating the acquisition of knowledge during the upcoming school day as they wend their way through the cities and towns all across America. We think of them as zones of safety for our most precious cargo, but in fact they are enclosed metal tubes that subject school children to all the same diesel pollutants that got Volkswagen into so much trouble recently.
Why we throw our arms up in horror when Volkswagen sells diesel powered cars that exceed legal limits for tailpipe emissions and put those responsible in jail for their actions but happily consign school children to riding in diesel powered vehicles to and from school every day is a great mystery. Do we think the diesel engines in those buses run cleaner than the passenger car engines in those Volkswagens? It is to laugh.