Air pollution is driving us all down a road to ruin | Letters

That the government is now at last being forced to do more to reduce the dangerous levels of nitrogen dioxide air pollution is welcome news (Court defeat for government on air pollution, 3 November). More than a year on from the "dieselgate" revelations, ministers should have been in no doubt about the dishonest and illegal methods used by some manufacturers to cheat emissions tests. Not only has the government failed to update its pollution modelling based on realistic emissions figures, it has also done nothing to support the 1.2 million UK diesel vehicle owners caught up in this scandal.

If anything, the government seems to be going out of its way to protect manufacturers. Cars fitted with the defeat device software are still able to pass MOT emissions tests, so the Driver and Vehicle Standards Agency seems to have turned a blind eye to this.