Wangari Muta Maathai ( /wænˈɡɑːriː/ /mɑːtˈaɪ/; 1 April 1940 – 25 September 2011) was an internationally renowned Kenyan environmental political activist and Nobel laureate. She was educated in the United States at Mount St. Scholastica (Benedictine College) and the University of Pittsburgh, as well as the University of Nairobi in Kenya.
Read about Wangari Maathai in Wikipedia