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Polar Opposite: Polar Bears Require Thin Ice Or Open Water To Survive

Polar Opposite: Polar Bears Require Thin Ice Or Open Water To Survive

By on 5. September 2022

Abundant polar bear remains dating to 8000 to 9000 years ago have been found on Zhokhov Island, which is today surrounded by year-round sea ice (even in summer). This Arctic latitude (76°N) is too cold and thus too ice-covered for polar bears to inhabit today. During the Early Holocene CO2 concentrations ranged between 255 to […]

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