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A farmer harvests corn on a farm near Spring Mills, Pa. According to current biofuel laws, if you burn ethanol from corn in your car, the government doesn't count the carbon dioxide that comes out of the tailpipe as an actual carbon emission. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Research News

Scientists: Biofuel Laws May Harm Environment

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US Airways planes prepare to taxi for takeoff at Sky Harbor Airport in Phoenix in 2007. US Airways is one of many airlines that have farmed out some maintenance to repair shops in developing countries. Ross D. Franklin/AP hide caption

itoggle caption Ross D. Franklin/AP

Flight Mechanics: The Business of Airline Repairs

To Cut Costs, Airlines Send Repairs Abroad

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