From Guy Cox, Sydney, Australia
That buying baked foods such as pies has a larger carbon footprint than buying raw vegetables is hardly surprising, since energy is always needed to prepare and cook them (13 August, p 13). The real question is, does buying a pie have a larger or smaller carbon footprint than buying the ingredients and baking your own? My money would be on the supermarket pie because of economies of scale. But I know which would be tastier!
