Last year’s record high oil prices have renewed mainstream interest in alternatives to fossil fuels. Current products like corn-based ethanol, with its quick-burning consistency and negative effect on global food prices, might soon be seen as a hiccup in the story of sustainable, green fuels. A new generation of bio-fuels, as well as new approaches to established fuel sources, are making a cleaner, greener future seem like more than a mere pipe dream.
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