Are biofuels worse than fossil fuels?

LiveThe European Council will today release legislation that will encourage the use of biofuels to increase 50% by 2020. But environmentalists say biofuels made from some food crops contribute more greenhouse gases than the fossil fuels they are designed to replace, as well as causing deforestation and hunger. With your help, Karl Mathiesen investigates.
http://www.theguardian.com/environment/2013/nov/29/biofuels-worse-fossil-fuels-food-crops-greenhouse-gases