Pune, September 16 The United Nations Environment Programme (UNEP) and Pune Zilla Parishad Secondary School Section will hold a special programme to celebrate the International Day for the Preservation of Ozone Layer on Wednesday. An educational tool for creating awareness about Ozone depletion and climate change among students will be launched on the occasion. The UNEP had already created an educational tool for the primary students. It consists of a story in which a character named Ozzy tells the story of Ozone depletion and climate change. It has already been translated into Marathi, Hindi, Urdu and Bengali. The tool is available in the form of books and CDs.