Russell Schnell

Oct. 12, 2012

Tracking the Ozone Hole, as It Waxes and Wanes

The Antarctic ozone hole reaches its largest size by late September -- but then it disappears again.

ozone hole, atmosphere, stratosphere, cfcs, ozone depletion, climate

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Michael Pollan Talks Plants and Food

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Happy Thanksgiving!

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Mystery Box

Meet The Balloonatics

\tIt's crunch time for the 'balloonatics' at Macy's Parade Studio. The balloons themselves, which are designed and fabricated in a warehouse in New Jersey, are getting their final checkup before the Macy's Thanksgiving Day Parade. John Piper and Jim Artle take us around the studio and spill the secrets of inflation, explain how to calculate whether your balloon will float, and explain why the balloons look better after a little time in the sun.

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\t \t\t \t\t\tDownload MP4 | Watch on YouTube. \t

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