London Air Quality - Pollution

http://www.standard.co.uk/news/london/west-end-shoppers-are-being-gassed-by-pollution-8671264.html

quite liking these zero-emission Oxford Street transit suggestions from Anon.,

http://upload.wikimedia.org/wikipedia/commons/thumb/9/9c/11_Cable_Car_on_Powell_St_crop%2C_SF%2C_CA%2C_jjron_25.03.2012.jpg/220px-11_Cable_Car_on_Powell_St_crop%2C_SF%2C_CA%2C_jjron_25.03.2012.jpghttp://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Reading_Trolleybus_at_Three_Tuns.jpg/270px-Reading_Trolleybus_at_Three_Tuns.jpg

Best solution remain a tram line through Oxford Street and with new technology whereby trams can pick up power from beneath the road the need for overhead wires is removed !

Instead of wasting millions on DIESEL Borismasters London should be going back to the clean Trams and Trolley-buses which it used to have !

How much of this pollution comes from the empty taxis that Oxford Street gets clogged with ?

as for the taxis - an open question - they are clearly (or unclearly!) visible smog-polluters; i recall the @CleanAirLondon chap laying the blame with Boris, regarding the issue of who subsidises the Black Cabs being greened into zero-emission vehicles; ultimately, Londoners choose to use them, :-/

there is also the issue of whether the TFL 'Low Emissions Zone' could be more stringent, as despite its existence, London is still an Emissions Zone!!

hmmm, what's the best urban example of a LEZ???

which town / city could London learn from?!