Today is the International Day for the Preservation of the Ozone Layer. The UN General Assembly proclaimed the 16th September the Ozone Day in commemoration of the date, in 1987, on which the Montreal Protocol on Substances that Deplete the Ozone Layer was signed. This year also marks the 20th anniversary of the signing of the Montreal Protocol, in which the member States recognize their obligation “to take appropriate measures to protect human health and the environment against adverse effects resulting or likely to result from human activities which modify or are likely to modify the ozone layer (…).” The…