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After covering 22 of the most popular myths about biodiesel, I realized I’d only given lip service to a major issue: increasing food prices. If I use biodiesel made from soybeans right now, am I contributing to the larger problem of increasing commodity prices and starving poor people?

There is nothing like a little competition to inspire everyone to design better and greener. At least that is the theory behind the Progressive Automotive X-prize, which aims to create incentives to promote innovative thinking in the different industries.