It costs money to keep the air clean. I'll take clean air over the crap I've seen in China.
Understood but, there are other reasons China has air pollution issues in that region.
Yes, I know that... it is industrial plants and coal fired power plants that contribute most of the problem. Actually, China has significantly more stringent auto and truck pollution requirements than the US.
Diesel engines play a very small role in the environment but are carrying a very large burden. I don't think most folks mind paying their fair share but in this case, the diesel engine has become a political football being kicked around by those wanting to score political points.
Fully disagree on this one. Diesels are much dirtier engines, most specifically with particulate matter, aka, soot, and the carcinogenic pollutants they emit. Two thirds of all particulate matter comes from diesel engines, and nearly half of all oxides of nitrogen. And this is with a relatively small percentage of all engines being diesel.
Everything is a 'political football'. The same was said about efforts to rein in pollution in gas powered vehicles. The same is said about trying to do something about airplanes and ships, and stationary diesels. In reality, in the past, costs of ownership weren't wholly borne by the person with the car or truck... everybody else put up with pollution and its environmental and health impacts. Now, costs are being transferred to where they rightly belong... to the person who elects to use the technology. I'm OK with that... even if it is at times uneven.