From the Economist, 9 Dec:

bq. The term ‘food mile’ is itself misleading, as a report published by DEFRA, Britain’s environment and farming ministry, pointed out last year… It transpires that half the food-vehicle miles associated with British food are travelled by cars driving to and from the shops. Each trip is short, but there are millions of them every day.

(Incidentally, this is the first post I’ve made from a BlackBerry. Scary.)