http://www.helium.com/knowledge/188717-wangari-maathai-a-kenyan-woman-of-substance.xml Helium.com > Politics in Africa > Nobel Peace Prize winners: Wangari Maathai en-us Copyright Helium.com Thu, 25 Sep 2008 15:39:59 GMT Thu, 25 Sep 2008 15:39:59 GMT