I've been operating a clean diesel for fifteen years. They have gotten even cleaner during that time. If you go out of your way to criticize small diesel technology, you are in league with a lot of dummies. A lot of gas-guzzling, pedal-stomping, SUV-driving dummies.
It's a red herring to talk about what happens when a diesel starts - that's obviously the weakest link, but it's not significant to the overall emissions footprint. It's how much and what kind of emissions per passenger mile.
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