Anna Jaffe

Jan. 30, 2009

Building Greener Cars

Carmakers are working to retool for greener cars -- but many of those vehicles won't be ready to hit the road for years. We'll ask some innovators about outside-the-box efficiency ideas that could be undertaken today.

cars, emissions, automobiles, hybrids

Dec. 07, 2007

Improving Automobile Efficiency

Energy legislation currently moving through Congress could result in an increase in fuel efficiency standards for the U.S. auto fleet. In this segment, Ira and guests talk about the legislation, and about research into improving the fuel efficiency of car

car, automobile, efficiency, energy policy

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Michael Pollan Talks Plants and Food

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Comet Science

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Comet's Tail Shines Light on Sun

\tIn 2011, comet Lovejoy traveled through the sun’s corona and lived to tell the tale. But its tail was the most telling. Reporting in the journal Science, Cooper Downs, an astrophysicist at Predictive Science Inc. in San Diego, Calif., says that the wiggly path of the comet’s tail helps explain the sun’s magnetic field. \t 

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