Richard Young

Sep. 23, 2011

Solving The Riddle Of The Grand Canyon’s Formation

Most geologists agree on the approximate age of the canyon, but puzzles remain about its carving.

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Michael Pollan Talks Plants and Food

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Myths and Tips on Keeping Your Cool This Summer

Think caffeine dehydrates you? Or that you can't get too much water on a hot day? Douglas Casa, of the Korey Stringer Institute, sets the record straight.

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