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The city inside a glacier

Outside/In

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The Story of an Ice Core That Unlocked the Planet's Hidden Climate History

Nate Hedgy goes inside the National Science Foundation's ice core facility in Denver, Colorado. Camp Century was a nuclear-powered Arctic Research Center built during the height of the Cold War. The base itself was made up of about two miles of tunnels and overlying snow and ice were held up by metal arches. Today, powered by its nuclear reactor, this unique installation is a completely modern community under the ice.

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