Is it possible to grow the energy sources we need? While corn-based ethanol has received much of the attention in this country, there are other options. In this hour, we'll talk about some current research into biofuels, and where the field is headed. Whether you're interested in cellulosic ethanol, cyanobacteria, oil-secreting algae, or microbial fuel cells -- tune in for our biofuel roundup.
Produced by Ariel Bleicher