Buyodiesel?

Somewhat disturbing news from Jena University in Germany where academics have demonstrated that biodiesel made from rapeseed oil rarely achieves the 35% saving in greenhouse gases claimed by its enthusiasts in the EU (http://www.guardian.co.uk/environment/2012/aug/19/biofuel-fails-eu-sustainabilty-test?INTCMP=SRCH) . They interestingly point out that 3 of the largest EU producers of rapeseed are France, Germany and Italy, all countries with large car-manufacturing industries. They also opine that much of EU policy on further reductions in greenhouse gas release appear to be based on plans for increasing biodiesel when its efficiency in terms of savings is in doubt. If one takes this in conjunction with the claim that 40% of US corn is ear-marked for conversion to car fuel, one can see why some people think that biodiesel production is driving up food prices in parts of the world.