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rom Rio de Janeiro to Amsterdam, biofuels are all the rage but can "green fuel" take on oil to become a long-term viable alternative to fossil fuels? Analysts say production of biofuels - made from sugars, cereals and vegetable oils - cannot be scaled up substantially to reduce global dependence on oil because of limited raw materials, high cost, lack of a global market and uncertainty over government policies.
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rom Rio de Janeiro to Amsterdam, biofuels are all the rage but can "green fuel" take on oil to become a long-term viable alternative to fossil fuels? Analysts say production of biofuels - made from sugars, cereals and vegetable oils - cannot be scaled up substantially to reduce global dependence on oil because of limited raw materials, high cost, lack of a global market and uncertainty over government policies.