if you could ban one thing

[srijantje]

actually ,they did that in delhi some years ago,among other things they put all public transport,diesel buses,2 stroke rickshaws,on natural gas,pollution wise that made a huge difference,the chaos is still there though.
when i was in the boondocks in tibet last year i almost got run over by a hooker on a soundless scooter,later i realized it must have been electric