Sales of biodiesel at the 1,900 petrol stations in Germany have doubled to 376.6 million litres in just two years. This amount is sufficient to meet the average yearly consumption of well over 300,000 passenger cars. Thus biodiesel is the most easily available and best-established alternative fuel source of them all. Further text can be accessed at ots and at www.presseportal.de . Use of this photograph for journalistic purposes is free of charge. Please state following source: "obs/UFOP e.V."