Tribute: Wangari Maathai

Kenyan environmentalist Wangari Maathai became the first African woman to receive the Nobel Peace Prize in 2004, when she was recognized for her work in sustainable development. In 1977, she launched the Green Belt movement, putting thousands of Kenyan women to work planting trees to restore the country’s forests. She traveled the world discussing the connections between poverty and environmental deterioration. She died recently at the age of 71 and you can hear her 2006 conversation with Leonard Lopate.