Story Highlights - Biofuels have potential to make a positive impact on climate change - Boom in biofuel crops could increase competition between food and fuel - Opinion divided over claims that biofuels can meet growth in global energy needs Strain on water supply and soil erosion possible down-sides to biofuel crops http://www.cnn.com/2008/TECH/02/24/eco.biofuels/index.html?iref=newssearch
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