The head of the UN Environment Programme has warned that the biofuel market could crash if suitable environmental standards aren't established. According to the BBC, "Achim Steiner... said there was an urgent need for standards to make sure rainforests weren't being destroyed." The story also picked out Indonesia's tropical peatlands for special mention of what it terms "biofuel folly". (Nice phrase, I'll have to remember that one!)
Mind you, Steiner was making those comments in response to an independent group of scientists who criticsied the stance taken by the Intergovernmental Panel on Climate Change (IPCC) on biofuels, which was described as "naive".