Seems like he's talking about climate change, whereas you are talking about polution more generally. NO2 isn't really relevant to global warming, but isn't heal

Seems like he's talking about climate change, whereas you are talking about polution more generally. NO2 isn't really relevant to global warming, but isn't healthy. In the case of diesel cars, as I recall, the manufacturers built sports diesel engines that were much more polluting than normal older diesel engines. They then lied that they were still okay due to 'technology' which turned out to be detecting by GPS that the car was at a government test center and making it run like an old engine. Total fraud. When the fraud was found out, all those diesel sports cars were treated as super polluters because they were. But NO2 and small particles are a big short term problem rather than an apocalypse, so we should look at them differently. You are quite right in suggesting that, especially with a lot of lobbying going on, we should look critically at all proposals. The popularity of biofuels maybe being linked to the farming lobby.