The Many Benefits Of Trees; Remembering Comedian Norm Macdonald

Trees not only help slow the effects of climate change but also help clean and cool the air around them. WBUR's Martha Bebinger explains the many benefits of sugar maples. And, comedian and former Saturday Night Live cast member Norm Macdonald died this week after a long battle with cancer. Geoff Edgers, arts reporter for The Washington Post, profiles the comedian's career.