Scientists Discover Greenland’s Ice Sheet Once Retreated 60 Miles
Sediment beneath a secret Cold War base reveals a time when warmer summers helped push Greenland’s ice more than 60 miles back from its current edge. About 416,000 years ago,…
Sediment beneath a secret Cold War base reveals a time when warmer summers helped push Greenland’s ice more than 60 miles back from its current edge. About 416,000 years ago,…