Topic: Beaufort Sea
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In Pictures: Alaska, all natural
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Stranded Alaska oil rig: Example of safe practices or Arctic risks? (+video)
A floating oil rig, carrying about 143,000 gallons of diesel fuel, doesn't appear to be leaking. But the oil rig, stranded off the coast of Alaska, has raised safety concerns: 'Oil companies keep saying they can conquer the Arctic, but the Arctic keeps disagreeing with the oil companies,' Congressman Ed Markey, said.
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Arctic ice shrinks to record low (+video)
Arctic sea ice has shrunk to the lowest levels since record-keeping began in 1979. Scientists say the new measurements indicate a fundamental change in the Arctic's sea ice coverage.
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Polar bears, brown bears interbred during warm periods. Is it happening again? (+video)
Polar and brown bears diverged between 4 million and 5 million years ago, but they continued to interbreed when the climate warmed, finds a new study led by the University at Buffalo and Penn State. Now, there is evidence that it is happening again.
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Arctic drilling: US setting policy to protect environment, indigenous people
With receding sea ice allowing energy exploration in the Arctic, the US is set to unveil a five-year leasing plan that seeks to minimize the negative environmental impact of the drilling.
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Opinion: Drilling for oil in Arctic Ocean is fraught with danger
This month the US approved four wells for drilling by Shell Oil in the Arctic Ocean off Alaska, an energy frontier. But Shell's plan to recover after an oil spill is completely inadequate, given the region's remoteness and weather.
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In Pictures: Alaska, all natural
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NASA plans to boldly go to the Arctic
The mission will seek to unlock clues about the changing Arctic climate and the shifting ice conditions that affect ocean ecosystems.
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Arctic drilling opponents gain momentum from Gulf oil spill
Exploratory drilling is scheduled for July in the waters off Alaska's northern shore. Environmental groups, reeling from the Gulf of Mexico BP oil spill, are fighting to put those plans on hold.
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Alaska oil's new 'Gulf of Mexico'
Oil companies are eyeing Alaska's largely untapped outer continental shelf. Critics say that's another Exxon Valdez waiting to happen.
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Bright Green
Arctic Ocean meltdown: Say goodbye to the Arctic ice capThe Arctic ice cap will disappear? A new study says the Arctic Ocean could be ice-free during the summer months in less than 20 years.
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Arctic sea ice melting faster than expected
If the pattern continues, warming effects could reach up to 900 miles inland, melting permafrost
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Beneath Arctic ice pack, teeming life holds extraterrestrial clues
Microscopic organisms thrive in polar-ice 'brine channels' whose conditions mirror some of those found in space.
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Beneath Arctic ice pack, teeming life holds extraterrestrial clues
Microscopic organisms thrive in polar-ice 'brine channels' whose conditions mirror some of those found in space.
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Beneath Arctic ice pack, teeming life holds extraterrestrial clues
Microscopic organisms thrive in polar-ice 'brine channels' whose conditions mirror some of those found in space.
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Climate worries complicate Alaska drilling plan
Lease sales could produce 15 billion barrels of oil, but environmentalists say drilling would threaten already melting habitat.
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