If you find yourself in Paris tomorrow, you might notice that the licence plates of all the cars on the road end in an odd number.
But this isn’t some bizarre and elaborate prank. This is how the French deal with smog.
It’s admirable in its simplicity. Registrations ending in odd numbers are allowed one day, even numbers the next, until the air pollution alert ends.
Paris mayor Anne Hidalgo asked for the law – which bans half of all private cars in Paris from running if micro-particles in the atmosphere rise above 50mg per cubic metre – to be imposed on Friday, much to the irritation of Ecology, Sustainable Development and Energy minister Ségolène Royal, who believes the law punishes commuters.