According to this article a New Zealand wine will become the first to display the carbon emissions per glass. Mobius Marlborough sauvignon blanc will show the full environmental impact of each individual glass serving on its label. The information will of course be different depending on where it is sold. Bottles sold in New Zealand are expected to carry a figure of 140g of CO2 whereas bottles shipped to Australia will display something in the region of 190g. Wines shipped to the UK will have a much higher figure. It will certainly be interesting to see the information but I wonder how much it will affect which wines people choose. I would happily buy English wine but it is impossible to find in the supermarket.