Why musician Matthew Burtner is composing a glacial serenade

Matthew Burtner is a composer and "eco-acoustician," weaving sounds he finds in the Alaskan tundra into his musical compositions. With climate change headlining the news, he hopes artists documenting the glacial melting might awaken their audiences -- and contribute to discussions about solutions. Valerie Kern of Alaska Public Media joined Burtner on a recent sound collection trip.