Nairobi, KENYA: Kenyan 2004 Nobel peace prize laureate Wangari Mathai smiles 08 November 2006 as she launches a two-million-dollar tree-planting project to rehabilitate forests on the flanks of Mount Kenya, Africa's second highest summit, at the UN Framework Conference on Climate Change (UNFCCC) at the UN complex in Nairobi. AFP PHOTO/SIMON MAINA (Photo credit should read SIMON MAINA/AFP/Getty Images)
Nairobi, KENYA: Kenyan 2004 Nobel peace prize laureate Wangari Mathai (L) smiles 08 November 2006 after launching a two-million-dollar tree-planting project to rehabilitate forests on the flanks of Mount Kenya, Africa's second highest summit, with UN undersecretary and UN Environmental Program (UNEP) executive Achim Steiner at the UN Framework Conference on Climate Change (UNFCCC) at the UN complex in Nairobi. AFP PHOTO/SIMON MAINA (Photo credit should read SIMON MAINA/AFP/Getty Images)
NAIROBI, KENYA: Nobel peace prize laureates Wangari Mathai (R) of Kenya, Shirin Ebadi (C) of Iran and Jody Williams of the United States smile 01 December 2004 in Nairobi, where they met to discuss peace in today's world at the Mine-Free World summit. AFP PHOTO SIMON MAINA (Photo credit should read SIMON MAINA/AFP via Getty Images)
Nobel Peace Prize laureate Wangari Maathai of Kenya (C) sits among representatives as they listen to Danish Prime Minister Lokke Rasmussen's opening speech of the UN climate conference at the Bella center in Copenhagen on December 7, 2009. The 15th UN climate conference on tackling climate change with negotiators from 192 countries opened on December 7, aiming toward a deal to ward off global warming's potentially catastrophic effects. AFP PHOTO / ATTILA KISBENEDEK (Photo credit should read ATTILA KISBENEDEK/AFP/Getty Images)
Nobel Peace Prize Laureate, Kenyan professor Wangari Maathai poses after a meeting at the Bella center of Copenhagen on December 15, 2009 on the 9th day of the COP15 UN Climate Change Conference. AFP PHOTO / OLIVIER MORIN (Photo credit should read OLIVIER MORIN/AFP/Getty Images)
