Topic: Steven Amstrup
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Polar bear 'doomed'? Only if greenhouse-gas emissions aren't cut.
Greenhouse-gas emissions worldwide must be cut to avoid a disappearance of summer sea ice in the Arctic, which is crucial to the polar bear.
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Bright Green
Polar bears spotted swimming in open seas
Government scientists patrolling the skies off Alaska's northwest coast say they observed nine polar bears swimming in open water, prompting some environmentalists to raise concerns about the species' survival in a warming world.








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