The 2004 Nobel Peace Prize Winner, Prof. Wangari Maathai, who is also the Assistant Minister for Environment and Natural Resources in Kenya, visited the Sergio Vieira De Mello Library on Monday 11th October 2004 and signed the visitors book.

Prof. Wangari Maathai was attendinga 3 days conference on Women As the Voice for the Environment (WAVE) at United Nations Environment Programme.

In her signing she appreciated the Library for the good work its doing at the United Nations Offices at Nairobi with the following words "Thank you all for your great support here at UNEP"

She also had an opportunity to walk around the Library and see the plaque of the United Nations Secretary General when he was awarded the Nobel Peace Prize in 2001