WANGARI MAATHAI is the founder of the Green Belt Movement, which has planted over 45 million trees across Kenya since 1977. In 2002, she was elected to Kenya's Parliament, and in 2003, she was appointed Deputy Minister for the Environment and Natural Resources, posts she held until 2007. Maathai was awarded the Nobel Peace Prize in 2004. In 2009, she was appointed a United Nations Messenger of Peace by UN Secretary-General Ban Ki-moon.