Diesel cars have never been very popular in the US and in the aftermath of the so-called Dieselgate scandal at Volkswagen, they are even less so. Less than a dozen diesel car models are available for purchase in the US and only one of those is from a German automaker: BMW.
Pollution particles emitted by diesel cars and trucks, coal-fired power plants, factories, primitive cook stoves, and the burning of forests are major contributors to the pervasive air pollution that plagues many cities and regions of the world. In India and China, such pollution leads to hundreds of thousands of deaths each year. And countries around the world are working hard to reduce pollution.
