Sleepthief that's the thing. Children, indeed not just children, are dying because of toxic levels of pollution caused by traffic. I appreciate that there can be (but by no means are always) myriad good reasons why people need, or feel they need, to drive, but at what point do we say 'your need doesn't trump a child's right not to breath toxic air'?
Should there be a much bigger push with regard to electric vehicles - for example, should all blue badge owners automatically be offered a discount on greener vehicles (as their need to drive is highest)? That's just one suggestion.
I think that some on this thread are frustrated by the inevitable endless naysaying about reducing car use. Like I said, every primary school (and possibly secondary as well) in my borough has overly high levels of pollution. DD has awful hayfever for months of the year that isn't helped by the air never clearing. We will probably end up leaving London, our home city (my home for 47 years) and where our jobs (which are London-centric), family, friends and home are because of it.
(I also think that a black cab driver's 'need' to continue being a black cab driver is no good reason for polluting black cabs to be exempt from the ULEZ charge, in fact I'm bloody angry about that.)