Alaska Dispatch: In the mid-20th century, when Carl Benson was traveling Greenland gathering data he would use to write his Ph.D. thesis on the temperature, structure and composition of the hard-packed snow that covers that island, conditions deep beneath the surface were fairly consistent: white, firm, cold and dry.
If you could imagine cutting a wall of Styrofoam, thats what it was like, said Benson, now a professor emeritus with the University of Alaska Fairbanks Geophysical Institute.
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