Argentine researchers have demonstrated how methane can be separated from other digestive gases produced by cattle, to power a car. The scientists say that harnessing cow power on an industrial scale ... more 
Argentine researchers have demonstrated how methane can be separated from other digestive gases produced by cattle, to power a car. The scientists say that harnessing cow power on an industrial scale could create a new form of sustainable energy while also reducing the carbon footprint produced by cattle ranches. Elly Park reports. less 
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Sun, Oct 27, 2013 10:08 AM EDT