Kenyan ecologist and 2004 Nobel Peace Prize Laureate Wangari Maathai, waves to 3,000 children invited by the organization Save the Children. To her right is Norway's Crown Prince Haakon.

© Pressens Bild AB 2004, S-112 88 Stockholm, Sweden, telephone: +46(0)87383800. Photo: Eric Feferberg

Nobel Peace Prize Laureate Wangari Maathai before entering Oslo City Hall to receive the Nobel Peace Prize.

© Pressens Bild AB 2004, S-112 88 Stockholm, Sweden, telephone: +46(0)87383800. Photo: John McConnico

Wangari Maathai with her Nobel Medal and Diploma at the Nobel Peace Prize Award Ceremony in Oslo City Hall. The Kenyan ecologist is the first African woman awarded the Nobel Peace Prize.

© Pressens Bild AB 2004, S-112 88 Stockholm, Sweden, telephone: +46(0)87383800. Photo: John McConnico

At the Nobel Peace Prize Award Ceremony, Oslo City Hall, Kenyan dancers perform to celebrate ecologist Wangari Maathai for being awarded the Nobel Peace Prize.

© Pressens Bild AB 2004, S-112 88 Stockholm, Sweden, telephone: +46(0)87383800. Photo: Eric Feferberg

Nobel Peace Prize Laureate Wangari Maathai, right, shakes hands with Norway's Queen Sonja in the Oslo City Hall. In the middle is Norway's King Harald V.

© Pressens Bild AB 2004, S-112 88 Stockholm, Sweden, telephone: +46(0)87383800. Photo: Bjorn Sigurdson