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Sugar cane and ethanol: Drink the best and drive the rest

Emma Marris1

  1. Emma Marris is a reporter for Nature based in Washington DC.

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Brazil's sugar-cane ethanol industry is the world's best and able to get better, says Emma Marris.

In Brazil, alcohol made from sugar cane is mixed with lime juice and a little of the cane sugar itself to make caipirinhas — and it's a fine way to get the weekend off to a flying start. But come Monday morning, sober Brazilian commuters are still using cane liquor — in their fuel tanks.

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