Ozone Day 2018 – THEME Ozone Day 2018 (BACK) PLEDGE THEME Posters Stickers Press Release 24TH WORLD OZONE DAY -2018, COMPETITION FOR SCHOOL STUDENTS RESULTS OF SCHOOL COMPETITION – 2018 THEME The theme for World Ozone Day 2018 to be marked on 16 September is “Keep Cool and Carry On: The Montreal Protocol “ (Ozone Day 2018)