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Marking Earth Day with look-back at where it started

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Earth Day is today — a history that goes back some 43 years. It all started with an article in a newspaper, when Denis Hayes was inspired by the words of Sen. Gaylord Nelson. The two worked together to coordinate the first Earth Day, in 1970.
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Dual epidemics threaten Australia's koalas

Australia's koalas are under threat from two different diseases, one of which is familiar to humans. Koalas are frequently being infected with chlamydia -- and it may decimate the population. But new research, and a new vaccine, gives hope they may be saved....
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Humanoid robot shows off advances in technology, dances to Gangnam Style

At a Los Angeles Korean festival recently, attendees got a special treat. A humanoid robot from Virginia Tech was on of the shows -- and it performed the dance to Psy's Gangnam Style to roars of approval....
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New research shifts model on how forests contribute to carbon sequestration

New research out of Sweden, published recently in the Science magazine, changes the way scientists view trees' contribution to carbon sequestration. Ecologist Karina Clemmensen learned that trees continue to store carbon in the environment for its entire life because of fungus growing on the tree roots....
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Small Arkansas town of Mayflower dealing with aftermath from oil spill

A pipeline taking oil from Canadian tar sands south to refineries along the Gulf of Mexico sprung a leak in the town of Mayflower, Ark., contaminating the environment and displacing residents. Though the major clean-up is done, residents are still dealing with the spill's aftermath....
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Climate change a persistent threat to Maasai's traditional way of life

Kenya's Maasai people have a distinct culture — distinct clothes and and habits that make them stand out among people. But that historic way of life is threatened by climate change, making their traditional lifestyle increasingly untenable....
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Pacific Northwest governors urge federal officials to look closely at coal export proposal

Federal officials are considering a plan to open up federal lands to coal mining, with the idea that the coal would be exported, likely to Asia. But two governors, in Washington and in Oregon, are urging federal officials to look closely at the proposals and consider whether its in the national best interest....
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U.S. students compete to improve environment -- and win trip to Costa Rica

Students across the United States and Canada were challenged to come up with ways to improve their local environment. If the ideas were good enough, they could win a tip to Costa Rica for a youth leaders summit on the environment....
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Buffalo zoo about to take polar bear cub population from one to two

A New York zoo is hand-rearing a polar bear cub born to one of its adult bears. But now, the zoo is being asked to take in another cub, an orphan, from Alaska, in hopes that the two will grow up healthier if they do so together....
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Congress' budget bill contained protections for genetically modified food

A bill to keep the government operating through the end of September contained an unrelated provision that protects genetically modified food. While some say it's unconstitutional, a provision of the bill prohibits the courts from pulling an unsafe genetically modified product from the market....
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