Science
Linking Glaciers on Earth to the Climate on Mars – Physics
Geophysicist Jack Holt explains how Earth’s debris-covered glaciers can teach us about the climate history of Mars.
As a student, Jack Holt had three loves: geology, exploring remote mountain regions, and aviation. Now, as a geophysicist at the University of Arizona, he’s merged those loves into his academic pursuits. Holt has tracked the history of Earth’s magnetic field, which required visits to Death Valley in California, Baja California in Mexico, and the Big Island, Hawaii, and he ran an airborne field program to study the internal properties of glaciers, which took him to Antarctica. There, he used his…
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