Bruce Springstein’s new CD, “We Shall Overcome, The Seeger Sessions,” pays tribute to the songs of singer, songwriter and activist Pete Seeger. A few years ago, Living on Earth spent some time with the folk music legend who told host Steve Curwood that it was Rachel Carson’s book “Silent Spring” that inspired him to become active on environmental matters. One of Seeger’s goals was to clean up New York’s Hudson River and he built a boat he called “Clearwater” to educate the public about pollution. Host Steve Curwood met Pete Seeger at the Sloop Club on the banks of the river in Beacon, New York and has this profile.