ALTERNATIVE FUELS

Alternative fuels include biodiesel and hydrogen. Alternative fuels are important because they could eventually provide us with a cheaper, cleaner, and more abundant source of fuel. Check out these great alternative fuel articles from HowStuffWorks.
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Grassoline: Can we fuel cars with grass?

Can we use grass to power our cars? Proponents of cellulosic ethanol made from switchgrass think we can. Others fear we'll stop growing food to grow fuel.

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