Science: Crystal Ball of Ice

Crystal Ball of Ice Snow was flying last week on the Juneau Ice Field, and the last of the Jirps (members of the Juneau Ice Field Research Project) had flown or skied to warmer levels. They had completed one more season of probing Alaska's great ice mass, clocking its slow motions, and trying to use it as a vast crystal ball to predict the earth's future climate.

Organized in 1948, by the American Geographical Society, JIRP was led by Glaciologist Maynard Malcolm Miller (now 30), who decided that the Juneau Ice Field was an ideal...

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