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Experts tell us that Polar Bears can’t survive summer without ice. They fall over dead, like Colorado Pikas in 60 degree weather.
Sadly, the Arctic was indeed ice-free around 5,000 years ago, which means that the last Polar Bear went the way of the Dodo Bird long before we were all born.
Examination of several proxy records (e.g., sediment cores) of sea ice indicate ice-free or near ice-free summer conditions for at least some time during the period of 15,000 to 5,000 years ago (Polyak et al., 2010)
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