Arctic Sea Ice Has Declined Since Satellite Records Began in 1979
The summer minimum extent has shrunk by more than a third.
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Fridtjof Nansen's Ship Fram Drifted Across the Arctic in 1893 to 1896
The ship was built to be frozen into the ice and carried by its currents.
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The Arctic Tern Migrates From the Arctic to Antarctica and Back
The round trip can exceed 70,000 kilometers.
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About Four Million People Live in the Arctic
Indigenous peoples including the Inuit, Sami and Nenets have lived there for thousands of years.
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Near the North Pole the Sun Does Not Set for About Six Months
The midnight sun is followed by a long polar night.