Astronomers Detect Most Distant Object Ever Seen

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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

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Carolyn Kaster/AP

Multimedia Audio

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Wes Jackson, founder of the Land Institute, at his farm in Salina, Kan. Richard Harris hide caption

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Richard Harris

Prairie Pioneer Seeks To Reinvent The Way We Farm

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Future Unlikely For Kyoto Climate Treaty

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Gunnar Oquist (left), permanent secretary of the Royal Swedish Academy of Sciences, and Ingemar Lindstrom of the Academy sit next to portraits of the 2009 Nobel Physics Prize winners in Stockholm on Tuesday. Scanpix Sweden/Bertil Ericson/AP hide caption

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Scanpix Sweden/Bertil Ericson/AP

Fiber Optics, Imaging Pioneers Win Physics Nobel

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Pioneers Of Fiber Optics, Semiconductors Win Nobel

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Are This Week's Earthquakes Related?

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China, U.S. Try To Get Climate Talks Moving

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Obama: Action On Climate Change Needed

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President Obama waves from the doorway of Air Force One on Monday as he prepares to fly to New York for the U.N. General Assembly. Hans Pennink/AP hide caption

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Hans Pennink/AP

Clock Is Ticking On Copenhagen Climate Treaty

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New Coolants Make For Hotter Planet

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A glacier in Patagonia, Argentina, calves, with a sudden collapse of ice. Researchers say that the activity that precedes these types of tipping points and the triggers that cause them may follow predictable patterns. Philip Stanley Dickson/iStockphoto.com hide caption

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Philip Stanley Dickson/iStockphoto.com

Predicting The Crash: Tracking Tipping Points

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A more than 30,000-year-old dyed flax fiber found in Georgia. It's likely that early humans used plants in the area to color the fibers. Eliso Kvavadze hide caption

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Eliso Kvavadze

These Vintage Threads Are 30,000 Years Old

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In the study, cotton-top tamarins grew calmer after they heard music compositions based on their own calm, friendly calls, and became more agitated when exposed to music that contained elements of their own threatening or fearful calls. Bryce Richter/University of Wisconsin-Madison hide caption

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Bryce Richter/University of Wisconsin-Madison

Music Written For Monkeys Strikes A Chord

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