Ice Sheet Time Machine

The US military carved a tiny city into the Greenland ice sheet. What they found, and lost, and found again, and what it tells us about climate change.

Guests: Paul Bierman, geoscientist at the University of Vermont (uvm.edu/~pbierman) and author of When The Ice Is Gone (wwnorton.com/books/9781324020677); Richard Alley, geoscientist at the Pennsylvania State University (geosc.psu.edu/directory/richard-alley)

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