A Wisconsin researcher explains how she uses audio to study rainforest health. Then we talk about the implications of a new U.S. Postmaster General and what privatization could mean for the mail service. And we catch up on the first day of the Senate impeachment trial of President Donald Trump.

Measuring Rainforest Health Using Sound, What A New Postmaster General Could Mean, Impeachment Trial Update

Hosted by Rob Ferrett, "Central Time" takes a unique approach to cover a variety of topics. Executive producer Dean Knetter and producers Tim Peterson, Colleen Leahy, Lorin Cox, Beatrice Lawrence, and Richelle Wilson explore the latest news, cultural trends, and explore ideas -- big and small -- finding the best guests to discuss these thought-provoking topics. Sarah Hopefl is the program's technical director.

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Measuring Rainforest Health Using Sound, What A New Postmaster General Could Mean, Impeachment Trial Update

Measuring Rainforest Health Using Sound, What A New Postmaster General Could Mean, Impeachment Trial Update