Driving to the supermarket to save the environment?

According to Transport 2000, the fact that supermarkets get delivery from a small number of very big lorries actually cuts down on greenhouse gas emissions, as compared to local shops which get deliveries from a number of smaller vans. Not that I think that the greenhouse effect is nearly as important as is usually stated, but the local-is-worse conclusion here is kind of ironic.

Save the planet by driving to the supermarket