Corn ethanol is a renewable energy, but is it clean?

There is a big debate over corn ethanol. It is renewable, and makes America less dependent on foreign oil, but how does increasing corn production affect the environment? With a lot of carbon emissions in ethanol production and a lack of water in the High Plains region, corn ethanol might not be as environmentally as you might think. So, where does that leave us in the fight against fossil fuels?

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