Tesco spends £25 million to change a light bulb (amongst other things)

Something of a debate has developed on the venerable Today programme about light bulbs. It kicked off when Tesco boss Sir Terry Leahy appeared yesterday plugging a £25 million investment in a sustainable consumption institute. It's in collaboration with the University of Manchester which, according to Tesco's press release, will "explore vital areas of research such as how customers can be empowered and incentivised to buy green products and services, how business can adapt to meet customer needs and how we can train the next generation of environmental leaders and experts."