On a trip to Mexico City this week, I have just seen a lovely sight. A long row of all-electric Nissan Leafs lined up in a taxi rank ready to start the day.

Electric Taxi Rank in Mexico City

If you have ever been to Mexico City, then you will know that air pollution is a major issue here, as it is now becoming in all large cities. The taxi rank is not yet a full solution, and the city is still filled with diesels and petrol guzzlers blasting out noxious fumes, but it is a step in the right direction. I hope for many more.