Cold War Greenland Base Was Ice-Free 416,000 Years Ago
Scientists studied sediment from Camp Century, a Cold War US military base in northwestern Greenland, revealing the area was ice-free 416,000 years ago. Summers then were 4.7°C warmer, offering insights into Earth's warmer past. The base was built in 1959 and abandoned in 1967, buried beneath Greenland's ice sheet.
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