The Organization for Economic Cooperation and Development (OECD) has pointed out in a recent report that biofuels might cause more harm than good. The organization claimed that the use of biofuels is unsustainable and could possibly disrupt markets without the expected environmental benefits.
 
Biofuels came into vogue some time ago as a means of reducing energy reliance, boosting farm revenues, and to help fight global warming. Unlike conventional fuels, this product is made from grains, oilseeds, and sugar, products considered renewable. However, the OECD stated that it is hurting the environment more and is even pushing up food prices.

The group cited the use of fertilizer, acidification, as well as biodiversity loss and agricultural pesticides as far more damaging overall than the negative effects created by petrol and diesel. They didn't propose this without a potential solution to the problems biofuel was supposed to fix though, they pointed out that:

A liter of gasoline or diesel conserved because a person walks, rides a bicycles, carpools or tunes up his or her vehicle's engine more often is a full liter of gasoline or diesel saved at a much lower cost to the economy than subsidizing inefficient new sources of supply.

This may be the case, but until further action is taken to investigate the full impact of biofuels, it will remain as one of the stronger alternatives to normal fuels.