Thursday, November 20, 2014 - 3:00am

The Earth is a few billion years old and a lot has transpired during that time. In today's Academic Minute, Tufts University's Jack Ridge explains how more precisely understanding geologic time can create an accurate record of the planet’s climate. Ridge is professor and chair of Tufts's department of earth and ocean sciences. A transcript of this podcast can be found here.

Download Episode (2.29 MB)


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