TechnologySmart-grid 'stockbrokers' to manage your power Software agents that get the best price by buying and selling electricity on your behalf could increase grid efficiency and help you cut costs 51¶¯Âþ
EarthA blue-green revolution: Upgrading photosynthesis There's plenty of room for improvement in the ways plants turn sunlight into food – the technology has been around for a billion years, says Bob HolmesFeatures