The two biofuel studies we discussed a few entries ago also sparked an 40 minute discussion on NPR's Science Friday last week. As a couple of of you pointed it, it may be that algae is the way to go in creating biofuels from garbage and left-over bits agricultural waste. Apparently, the mix of biofuels currently supported by legislation specifically asks for corn ethanol, which is the problem. But the more we can get the word out that cradle-grave accounting of a fuels carbon footprint is the way to really assess a fuel's real value, the better.
Here's the link to the SciFri archive on biofuels. It's a great listen.