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Bio fuel in Brazil |
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In Brazil they have been using sugar cane to make ethanol - a fuel which can power cars, lorries and buses instead of petrol. Other countries are making fuel from soyabean, sugar beat, corn and palm oil. These new fuels are called biofuels.
Brazil is now using fuel called ethanol made from sugar cane for 40 per cent fuel needs for cars, lorries and buses. Brazil is the world’s largest sugar cane produce and is quickly becoming the world’s largest producer of biofuels. In 2004, half of its sugarcane crop was used for sugar and half for ethanol. Brazil is considering exporting some of its fuel made from sugar cane to Japan and China. Brazil has worked out a way of producing ethanol from sugar cane which is really energy efficient. Once the sugary syrup is removed from the cane, the fibrous remainder (bagasse) is burned to provide the heat needed for distillation, eliminating the need for an additional external energy source. This helps explain why Brazil can produce cane-based ethanol for just 60¢ per gallon.
If Brazil wants to produce more fuel made from sugar cane it will need to increase the amount of land which is used to grow sugar cane. The risk is that parts of the Amazon basin will be used to grow sugar cane and this will pose a major new threat to plant and animal diversity.
The United States produces ethanol made from corn. In Europe the main countries producing bio fuels are France, the United Kingdom, and Spain. Europe's biofuels are mostly made from sugar beets, wheat, and barley. Which plants make the most ethanol?
Bio fuel can also be mean from plant oils. Fuel made from plant oil is called bio diesel. This is not the same as the ethanol made from plants such as sugar cane. Which plants make the most oil?
Governments around the
world support biofuels production because of concerns about climate
change and a possible
reduction in
availability of imported
traditional oil. Since substituting biofuels for gasoline
reduces carbon
emissions, governments
see this as a way to meet their carbon reduction
goals. Biofuels also have a domestic economic appeal partly
because locally
produced fuel creates
jobs and keeps money within the country. |
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Project originally funded
by EU and DfID with support from Tower Hamlets LEA
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