You say improving air will take place by some sort of bottom up approach. loads of individuals making certain changes. that sounds a bit like thatcher when she said there's no such thing as society. Bottom up is not enough it must work in unison with a top down approach [government, council] which does not favour the needs of the already healthy, the already rich. I never listened to Vine's show but when you describe a caller as 'angry and ranting' it shows you are not really interested in debate. The local issue is very clear. Walk down lordship past the lordship lane estate the fumes are sickening. Look down he glorious boulevard of court lane. 1 bike and a pram. The inequity of this particular LTN is astonishing and bringing in a generalist argument about the environment does not work. But I congratulate you this is definitely my longest post ever.