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How The Sweet Potato Crossed The Pacific Way Before The Europeans Did

The genes of the root vegetable have a juicy story to tell of trans-oceanic adventure. A DNA analysis of sweet potatoes adds evidence to the theory that ancient Polynesians visited South America long before the Europeans arrived.
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Obama Wants To Build On Climate Accomplishments

President Obama vowed in this week's inaugural speech to address climate change. The comments recevied a chilly reception in Congress. There are, however, steps the administration can take on its own.
NPR

Rules Would Retire Most Research Chimps

An NIH working group recommends that most of the agency's 360 research chimpanzees be sent to a sanctuary — a non-laboratory setting where chimps can live more natural lives. But even if the NIH accepts the recommendations, putting them into effect won't be easy.
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In Second Inaugural, Obama Makes Climate A Priority

President Obama pulled out a surprise in his inaugural address. After barely mentioning climate change in his campaign, he put it on his short list of priorities for his second term. Experts believe he'll use the EPA to ramp up efforts to reduce greenhouse gases from power plants.
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To Catch A Marten: Seeking Clues In Olympic National Forest

Scientists are worried about the elusive members of the weasel family that live in parts of Olympic National Forest in Washington state. To see whether martens are endangered, volunteers are installing remote camera traps to take photos of the animals.
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Former Anti-GMO Activist Says Science Changed His Mind

For years, British environmental activist Mark Lynas vandalized genetically modified food crops. Then, he had a change of heart. He went in front of the world to reverse his position, telling the anti-GMO lobby to "get out of the way and let the rest of us get on with feeding the world sustainably."
WAMU 88.5

Cheaper Bedbug Extermination May Be Near

A new drug is in the works to exterminate bedbugs at a cheaper price.

NPR

Powerful But Fragile: The Challenge Of Lithium Batteries

Aviation authorities in the U.S. and abroad have grounded the new Boeing 787 because of problems with its big lithium batteries. The batteries pack an electrical punch, but can create incredible heat — and even fires — if things go wrong. This is a problem for electric car makers, too.

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