Originally the EU wanted 10% of car and truck fuel to be in the form of biofuels by 2020. But that goal was set before people realized just how much diverting crops to fuel production would drive up world food prices, and that it would only encourage plowing under more acres of forest to turn it into farmland - both fairly big downsides. The European Parliament has now reduced the renewable fuels target from 10% to 6%, the remaining 4% now will have to come from hydrogen, electricity or from biological sources that aren't food crops.
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