Special Issue on the International Day for the Preservation of the Ozone Layer, 16 September 2022 The World Ozone Day 2022 theme and tagline - Montreal Protocol@35: global cooperation protecting life on earth - Montreal Protocol@35: global cooperation protecting life on earth - Marking International Ozone Day, Secretary-General Says Montreal Protocol’s Success Protecting Ozone Layer Powerful Example of Multilateralism in Action. The UN Secretary-General António Guterres’ message on the International Day for the Preservation of the Ozone Layer, observed 16 September - Message from Inger Andersen UNEP Executive director for World Ozone Day 2022 - Letter from the Head of UNEP OzonAction to National Ozone Officers for World Ozone Day 2022 - Protecting the Ozone Layer, 35th Anniversary - Book