Watch this video about biofuels on HowStuffWorks. LiveFuels is developing biofuel technologies using algae because it multiplies so quickly and produces so much oxygen that it could reverse the "Carbon Dioxide Problem"; unlike corn, which nets 81 gallons of biodiesel per acre (soy nets 40), algae yields as much as 15,000 gallons per acre. See how algae and biofuels work in this video from PodTech.net.