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Polar bears may be extinct by 2100 if Arctic ice melts at projected rate, according to new study - ABC News
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With an extinction threat looming, no wonder polar bears are at our door — and on the roof | CBC News
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Polar bears are inbreeding due to melting sea ice, posing risk to survival of the species, scientists say - ABC News
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Most polar bears could disappear from Arctic by 2100 due to global warming, study says | Climate News | Sky News
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