Bioenergy: Plugging into Nature

Biofuels (4/6)

A truck is loaded with sugar cane that will be used in the production of ethanol in southern Brazil. Three-quarters of the cars now being produced in Brazil have "flex-fuel" engines, capable of running on either ethanol or petrol, or any mixture of the two.

Brazil and the United States are the world’s largest biofuel producers. Global ethanol production has doubled since the year 2000. (Photo: Reuters)