Research is being done into alternative crops for biofuels. A very promising alternative is algae. This video explains why.
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Bacteria that killed marsh grass could be harnessed to convert cellulosic biomass into biofuel.
Any organic material can be made into electricity, but some materials are better than others. Biomass power is a great use of wastes, but it's hard to use wastes as a large-scale source of energy. Learn more in this interesting audio report.