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Researchers have engineered the harmless gut bacteria E.coli to generate renewable propane. The development is a step towards commercial production of a source of fuel that could one day provide an alternative to fossil fuels. Propane is an appealing source of cleaner fuel because it has an existing global market.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fE7L04AIqbQ/140902114414.htm