We've presented a host of stories on ethanol over the past months, including those on production, impact on crops, how its used in today's fuel and other topics. For those who don't follow the subject every day, here's a capsule look at the pros and cons of ethanol and what it means to our nation's energy policy. Written by Matt Crenson of the Associated Press, the story defines the alternative fuel and puts its use into an up-to-date context. Check it out of you need to get caught up on the issues surrounding ethanol.

[Source: Matt Crenson / Associated Press via News14Carolina]

Updated to offer new link to same story

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