Tech Insider
Two reserachers, Lyle B. Hansen and Chester Langway, lean over a grey-brown piece of core with engrossed looks on their faces. The man on the left is pointing with a gloved hand to something on the core we can't see, he appears to be saying something.
Lyle B. Hansen and Chester Langway inspecting the sub-ice core from the Project Iceworm drilling.

Photograph by David Atwood, U.S. Army-ERDC-CRREL, courtesy AIP Emilio Segrè Visual Archives.

  • Study shows for the first time that Greenland wasn't covered in ice in the recent past.
  • The data comes from long-lost ice cores obtained during a secret army mission during the Cold War.
  • The implications for our climate mean it could raise sea levels by 20+ feet in the next century.  

Drilling thousands of feet down through a giant layer of ice isn't an easy task, but that's what the army liked about it.

Tags
Science, Ice Cores, Army, Cold War, Climate Change, Sea Level Rise
Source
Lost samples from a secret army base reveal that Greenland's ice vanished 416,0…