To answer the original question, you have to cook a study pretty hard to show any energy gains with ethanol from corn (still ignoring aquifer and pollution issues). Ethanol subsidies are welfare for farmers, and I used to think it made more sense than paying farmers to not grow anything, but I'm not so sure now.
As for Eric's question, the correct replacement is a mix of sources. Some solar (more in certain reasons of the country), some wind (more here in the windy parts of the country), lots more nuclear and clean coal for baseline, we'll still be stuck with gas for peak loads or making up shortfalls for lack of sun or lack of wind. If we power the grid with these (especially nuke) we have enough oil to make plastic and run our cars and antique tractors for a long, long, time.
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Today's Featured Article - Tractors and the City Boy - by Ken. A few years back I came to the conclusion that city life wasn�t for me. The houses so close together you could hear the neighbors fight, traffic so heavy speed limit signs meant nothing. So I started looking for the ultimate country setting. After many months I found the perfect place, off the beaten path, up a private � mile drive, old stone house which has stood the test of time, out buildings which haven�t stood the test of time, trees, birds, rabbits, and snakes. This is the place! Bought
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