Tesco is to test putting "carbon labels" on its own-brand products next month in a move to enable consumers to choose products which are less damaging to the environment.

The retailer will put carbon-count labels on varieties of orange juice, potatoes, energy-efficient light bulbs and washing detergent, stating the quantity in grammes of CO2 equivalent put into the atmosphere by their manufacture and distribution.

(Source: Graun) 

I suppose we should applaud the provision of extra information, but I'm not convinced that this is going to have beneficial effects. The carbon footprint is a crude measure of one element of something's environmental impact. But us environmentally concerned consumers don't just worry about carbon do we? (Yes, OK, I don't worry about it very much, but bear with me). We also worry about things like rainforests, and wild places and things like that. It has been suggestsed that we should measure the impact of a product on land usage using food prints.

The problem with the Tesco scheme is that consumers will be encouraged to focus only on the carbon footprint. So if it's successful it will tend to promote schemes which don't use much energy but which use vast acres of land.

This probably wasn't the intention though.