RT null T1 Report of the Celebration of International Ozone Day 2016 - Theme: Ozone and Climate: Restored by a world united A1 Sri Lanka, K1 ozone K1 ozone-depleting substance K1 ozone layer YR 2016 FD 2016 LK https://wedocs.unep.org/handle/20.500.11822/26961 UL https://wedocs.unep.org/handle/20.500.11822/26961 NO Country activities on the occasion of the International Day for the Preservation of the Ozone Layer 2016 DS UN Environment Document Repository RD Sep 24, 2026