There's lots of talk of trains, trucks, container ships being bad for our health.
Trucks are facing ever tightening emissions controls too, and it won't be long before diesel trucks will be banned from town centres.
Rail is slowly being electrified.
Ships tend to not drive up the high street, so present less of a concern for immediate health problem through particulate ingestion.
Diesel is more of a concern to respiratory and circulatory health, it's CO2 benefits for diesel road transport barely exist at all outside of a laboratory, the figures simply not being achievable in 'real world' use. It's time has come, and it looks set to be dead before petrol. Petrol doubtless won't be far behind, although there have in recent years been some breakthroughs in our understanding of combustion physics which may extend petrol life a little longer, particularly in hybrids.
Get over it. Starting similar threads ad nauseum won't change it Gavroche. We're very sorry if you just spent loads on a new diesel, but you're backing the wrong horse.