Under Greenland’s Ice, 21 Cold War Tunnels Have Been Sealed Since 1967, but Melting May Expose Their Toxic Remains

NASA’s routine Greenland radar test exposed a Cold War “city under the ice” buried 100 feet deep, and the toxic legacy sealed inside could one day return to the surface. The northeast portal to Camp Century during construction in 1959 (C) and again in 1964 (D). Unlike conventional radar, UAVSAR looks both downward and to the side, generating maps with additional dimensionality. What Lies Below the IceThe image’s appearance has renewed attention to what Camp Century left behind. A thermal drill used to drill through the Greenland ice sheet at Camp Century.