In this issue: 1- Message by UN Secretary-General Kofi Annan on International Day for the Preservation of the Ozone Layer, 16 September 2005 2- International Ozone Day to mark the signing of Montreal Protocol on 16 September; Vienna Convention to celebrate two decades of protecting the ozone layer on 21 September; "An extraordinary success story - but saving ozone layer an unfinished business," says UNEP