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The Secretary-General - Message on the International Day for the Preservation of the Ozone Layer, 16 September 2018
(2018-09-14)
The Secretary General's 2018 message on the occasion of World Ozone Day on 16 September 2018.
The Secretary General's Message on the International Day for the Preservation of the Ozone Layer, 16 September 2016
(United Nations, 2016-09-16)
Country activities on the occasion of the International Day for the Preservation of the Ozone Layer 2016