Intoxicated on independence: Is domestically produced ethanol worth the cost?

Scientific American: The thundering rumble and whine of race cars whizzing around NASCAR tracks across the U.S. boast engines burning a new fuel this year: ethanol. Given the sport's roots in running corn whiskey among other products during Prohibition in the 1920s, it might be viewed as coming full circle. After all, ethanol as fuel is just a 200-proof version of the drinking variety—albeit blended with more traditional petroleum-based gasoline. But NASCAR is hardly alone: U.S. IndyCar has run exclusively on ethanol......

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