I don't disagree, but there was a Europe wide effort in the late 90s to encourage diesels following Kyoto. The resulting tax changes on both vehicles and fuel l

I don't disagree, but there was a Europe wide effort in the late 90s to encourage diesels following Kyoto. The resulting tax changes on both vehicles and fuel led to a huge growth in diesels. They went from a minority 10% of vehicles to over half. Only later did awareness of particulates grow. Some background: https://www.theguardian.com/environment/2015/sep/22/the-rise-diesel-in-europe-impact-on-health-pollution https://www.theguardian.com/environment/2015/sep/22/the-rise...