Ethanol seems to be getting a fair bit of attention lately as a potential replacement for gasoline. I seem to recall, from more than one documentary or news story that ethanol is not as efficient a fuel as gasoline but it is more expensive and requires more energy in it's production.
Personally, I don't believe there will be any one "magic bullet" in terms of an energy source as a replacement for oil that will be commercially viable in the next 20 years. There will be a period of weaning off where a multitude of energy sources will be made commercially available and then a period of consolidation but it will take 50 years or more.
I equate to the Betamax or VHS "war" of the 70's and early 80's both of which were eventually replaced by laser tecnology.
Green With Envy: Food prices highlight need for alternative energy
By Ashley Luthern
In the United States, about two-thirds of oil used goes toward the transportation sector, but about 25 percent of that goes toward transportation that isn't the cars we drive domestically to get around town, according to the Energy ...
The Post :: All Stories - http://www.thepost.ohiou.edu/
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