The Arctic permafrost is 1,000 years old. As it thaws, scientists worry what it might unleash
The Arctic permafrost is 1,000 years old. As it thaws, scientists worry what it might unleash
www.usatoday.com The Arctic permafrost is 1,000 years old. As it thaws, scientists worry what it might unleash
Scientists, medical professionals and officials at the Pentagon are increasingly concerned about the potential organisms that have sat in permafrost.
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