The problem with ethanol as fuel is that there is not nearly enough arable land in our country to both heat homes and fuel cars. If we were going to use an alternative fuel, the only logical way to do it is if it'll replace both transportation fuel and home electrics/heating.
Ethanol is not the answer, so long as it comes from corn. We don't do it now simply because it is not cost-effective. Companies will opt to spend less money now and more later almost all the time. It's the idea that placing foundations now is not cost effective until we HAVE to do it.
Look into biodiesel, it's a MUCH better alternative fuel that is completely renewable and greenhouse neutral.
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