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Rapid Change in a Warming World

Climate change isn’t always slow, small, and imperceptible in a human lifetime. Ice core analysis has found a single decade in which temperatures over Greenland shot up about 15 degrees Celsius.

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The Climate Jump Heard 'Round The World

Scientists know that the unusual and rapid temperature jump of the Younger Dryas was felt over half the globe. But they're only now beginning to understand why.

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Interactive: Watch a Glacier Melt

Qori Kalis is the largest outlet glacier of Peru's Quelccaya ice cap. See firsthand how it (like all tropical glacier ice) is melting because of global warming.

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NAO Who?

Name any debacle of nature, and someone will likely blame it on El Niño. But there’s another large-scale climate pattern that's been overlooked: El Niño's fickle Nordic sister, the North Atlantic Oscillation.

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How NAO Does Its Thing

Find out how each NAO phase spins its particular brand of atmospheric tumult, affecting temperature, precipitation, cloudiness, and windiness in different regions — sometimes to drastic ends.

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NAO Data Hunting (and Gathering)

From the chilly depths of the Atlantic to ancient European forests, researchers are combing for data to explain the NAO's mysteries.

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Forecasting the Unpredictable

Northern Hemispheric temperatures are now at their steamiest. Discover why scientists are concerned about global warming's potential backlash on the NAO.

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Diabetes in a Dish: Using Stem Cells to Study Disease

While technological advances are making it easier for the 21 million diabetics in the United States to manage healthy lives, diabetes is still a disease that requires vigilance. See how scientists are using stem cells to find a cure.

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Essay

Essay: Will Dark Energy Please Come to Light?

Two teams working independently in 1998 came to the same conclusion: An invisible force, one that seems to act opposite gravity, is separating the matter in space at an increasing pace. Find out more about their “jaw-dropping” discovery.

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