Frankly, every government of a developed nation should have a plan for complete phase out of diesel vehicles in the near-term with very few exceptions. There is

Frankly, every government of a developed nation should have a plan for complete phase out of diesel vehicles in the near-term with very few exceptions. There is simply no such thing as a diesel powered automobile which does not have severe detrimental health impacts. Yes, it's a very challenging technological problem to tackle, diesel engines have great utility, but that's no excuse for tolerating the deplorable current state of things.