Ethanol
Ethanol, also known as grain alcohol, is produced from starchy grains like corn or from sugarcane. It can be used by itself or added to gasoline. Ethanol cuts down on polluting emissions, but it produces less energy per liter than gasoline. However, the cost of the fuel is as little as haft the cost of gasoline in countries like brazil, which is the world's biggest ethanol producer. In Brazil, the fuel can be found at every service station from downtown Rio de Janeiro to the remote Amazon region.
Food or fuel?
Although the advantages of renewable nonpolluting fuel are clear, there are many who object to their use as an alternative source of energy. They say that growing plants for fuel production could divert agricultural production away from growing crops for food in a hungry world, and less food could lead to more starvation in poor countries.
Ethanol
Ethanol, also known as grain alcohol, is produced from starchy grains like corn or from sugarcane. It can be used by itself or added to gasoline. Ethanol cuts down on polluting emissions, but it produces less energy per liter than gasoline. However, the cost of the fuel is as little as haft the cost of gasoline in countries like brazil, which is the world's biggest ethanol producer. In Brazil, the fuel can be found at every service station from downtown Rio de Janeiro to the remote Amazon region.
Food or fuel?
Although the advantages of renewable nonpolluting fuel are clear, there are many who object to their use as an alternative source of energy. They say that growing plants for fuel production could divert agricultural production away from growing crops for food in a hungry world, and less food could lead to more starvation in poor countries.
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