CNN has interviewed a series of experts for their opinions on the viability and future of biofuels. Amongst the experts are economist Keith Wiebe of the Food and Agriculture Organization of the U.N.; Dr. Richard Pike, chief of the Royal Society of Chemistry; and environmentalist Deepak Rughani of Biofuelwatch.
The main takeways seem to be that:
A - Some biofuels will work well and others will not
B - "Bio" does not necessarily mean "clean"
B - Creating fuel from growing things takes a lot of land.