A solution for the world's energy crisis may come in the form of a pig.
American oil company ConocoPhillips and Tyson Foods, the world's biggest meat producer, have announced that they will produce diesel from pork fat.
Cows and chickens will also be transformed to power motor vehicles.
The companies say that this renewable source of energy will be cleaner than conventional diesel. It is hoped that it will be available at petrol stations by the end of the year. [BBC]