Greg Carbin

Apr. 09, 2010


The average warning time for a tornado is about 15 minutes. But is that enough time to get your family out of harm's way? In this segment, a look at twisters -- and how the scientists chasing them could help us get better warnings.

storm, weather, tornado, tornadoes, stormchasers, extreme weather

Apr. 09, 2010

Weathercasters and Climate Change

A recent survey of television weather forecasters found that many didn't accept the idea of global warming. Why not?

climate change, weather, tv, communication


Michael Pollan Talks Plants and Food

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Happy Thanksgiving!


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.


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


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