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Studies Suggest Biofuels Can Worsen Warming
By Mr Ethanol | February 7, 2008
Wall Street Journal:
While the U.S. and others race to expand the use and production of biofuels, a growing body of scientific evidence suggests these gasoline alternatives will actually boost carbon-dioxide levels and thereby aggravate the problem of global warming.
A study published in the latest issue of Science finds that corn-based ethanol, instead of reducing greenhouse-gas emissions by a hoped-for 20%, will nearly double the output of CO2 and other gases that trap the sun’s heat. A separate paper in Science concludes that the clearing of native habitats around the world to grow more biofuel crops will lead to more carbon emissions, not less.
Such findings could spur a big rethink on the purported benefits of biofuels, an emerging field that has already been blamed for pushing up prices of corn and other food crops, as well as straining water supplies. The European Union has proposed that 10% of all fuel used in transport should come from biofuels by 2020. In the U.S., production growth is encouraged both by high oil prices and by the hope that Congress will stiffen current rules mandating that refiners use ethanol.
More.
Topics: Biofuel, Ecology, Negatives, News |
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