Carbon emissions from coal power stations could be transformed into a green biofuel, German power firm RWE AG reckons. The company said today that it's started using flue gas from a coal power plant to 'feed' algae and produce algae waste that could, one day, be used as biofuel. Algae at the "Coal Innovation Centre" in Nideraussem, Germany, basically uses photosynthesis to process CO2 into algae waste. That waste could then potentially be used as future fuel. In other words, it's an embyronic form of carbon capture and storage. The project's taking place in partnership with Jacobs University and the Juelich Research Centre. I've asked the RWE AG press office for more details.07/11 update: no word back from RWE yet, but Jacobs Uni has just posted further info here.