Wangari Maathai was the founder of the Green Belt Movement and the 2004 Nobel Peace Prize Laureate. She authored four books: The Green Belt Movement; Unbowed: A Memoir; The Challenge for Africa; and Replenishing the Earth. In her book, The Challenge for Africa, she argues for a moral revolution among Africans themselves. Illuminating the complex and dynamic nature of the continent, Maathai offers “hardheaded hope” and “realistic options” for change and improvement. She deftly describes what Africans can and need to do for themselves, stressing all the while responsibility and accountability. She was the first woman in East and Central Africa to earn a doctorate degree. In 1976, while she was serving in the National Council of Women, Professor Maathai introduced the idea of community-based tree planting. She continued to develop this idea into a broad-based grassroots organisation, the Green Belt Movement (GBM), whose main focus is poverty reduction and environmental conservation through tree planting. Professor Maathai was internationally acknowledged for her struggle for democracy, human rights, and environmental conservation.
Wangari Maathai's Nobel lecture (9 mins) https://www.youtube.com/watch?v=dZap_QlwlKw