As part of the celebrations to commemorate the International Day for Biological Diversity on 22 May 2007, the Division of Environmental Law and Conventions (DELC) engaged public primary school students in a drawing competition. Eighty percent of the competing schools were from slum areas in Nairobi. The drawings, which were done by children from grades 1 to 4, were displayed in the main lobby of their offices in Nairobi, Kenya from Tuesday, 15 May to Wednesday, 16 May 2007.