Ok, only temporarily and the (almost) half that are banned change from day to day. A temporary increase in pollution levels has sparked the emergency measure.

I’m fortunate enough to live close to where I work with the wonderful MyCiti bus available as a genuine alternative to get to work. Imagine a world where I was paid (subsidised) not to use my car on particular days. Perhaps a combination of local government and employer-sponsored initiatives, with a scorecard and recognition or prizes or tiers of benefits for better green behaviour.

There’s so much more than can be done in this space and so much more that must be done in the coming years and decades. What would it take you to not drive your car to work?