Bluegrass Musician and Greenhouse Gases

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4 segments
Lynn Sherr is in for Leonard today. Coming up on the show: Playwright Tina Howe on her new play, "Chasing Manet", which stars Jane Alexander. Then, Jim Parsons on his starring role in the CBS comedy, “The Big Bang Theory.” And, a new documentary that follows Béla Fleck on his trip through Africa as he discovers the roots of the banjo! Plus, this week’s Please Explain is all about the many ways to measure climate change.