When William Powers arrived in Liberia in 1999 as an aid worker, he found a country rife with poverty, environmental devastation and corrupt leadership. He also found one of the world's most beautiful rainforests and a people filled with optimism. Powers chronicles his experiences in the book "Blue Clay People: Seasons on Africa's Fragile Edge" and he joins Living on Earth guest host Bruce Gellerman to talk about what it's like living in, what he calls, "a fourth world country."