Wangari Maathai shuffled off the mortal coil on 25 September 2011.
She was a leading environmental activist and became renowned the world over as an advocate for tree planting and a champion for social justice and human rights. She became the first African woman to win the Nobel Peace Prize. As founder of the The Green Belt Movement in 1977 which focuses on environmental conservation and community development, she worked relentlessly for the upliftment of women by teaching them their deep relationship with the environment.
via Wangari Maathai: The passing away of an environmental legend | EcoWalktheTalk.