A report looking at innovative energy. To start, French researchers try to identify the sweetest of trees with a high sugar content to produce a fruitful harvest of biofuels. Meanwhile in Spain CO2 from a cement factory is sucked up by algae leading to the mass production of bio petroleum. Finally how green are the latest shiny engines to hit the road? They avoid polluting petrol but nonetheless need powerplants many still fueled by coal to run.