Re: Goodbye DISEASEel!!
A/C's comment was specifically about diesel, not about advances in modern medical science. The fact still stands that the real diesel particulate and NOx emissions are significantly higher than they are supposed to be and those are well known to be significantly detrimental to health.
Instead of looking at how far medical science has improved life expectancy in spite of the surge in production of dirty diesels over the last 20 years, we should be wondering how much better things could have been if they stayed at their pre government-supported level (see http://www.enveurope.com/content/25/1/15) which would likely have been much more similar to the US (see http://www.bbc.co.uk/news/world-us-canada-34329596). We should also be thinking seriously about how we can move away from them again, in favour of the less damaging alternatives.
Before all the diesel enthusiasts down-vote me in their dozens, perhaps you could think about why it is that you are a diesel enthusiast. Is it because they are genuinely a better proposition for passenger transport than all of the alternatives, or just because they're cheaper to run (almost entirely because of the government sponsored market distortion)?