Wangari Maathai, Nobel Laureate, will speak about the "Greening of the Earth" at the Smithsonian Institution on September 24, 7:00 pm, in Washington, DC. Born in a village in Kenya, Maathai earned a Ph.D. and headed a university department. She established the Green Belt Movement in 1977, which helps restore indigenous forests while assisting rural women by paying them to plant trees. In 2004, Maathai won the Nobel Peace Prize, bringing worldwide attention to the environment and its effects on peace, development and democracy. She has written her memoir, Unbowed (Vintage Books), which is now available. Venue to be decided based on early ticket sales. $15 Members, $10 Full time students with valid IDs. Telephone information: 202-633-8597. More information: Smithsonian Institution.