Montreal Protocol on Substances that Deplete the Ozone Layer. September 16, 1987.
Adopted on March 22, 1985 Preamble The Parties to this Convention, Conscious of the potentially harmful effects of the alteration of the ozone layer on human health and the environment Recalling the relevant provisions of the Declaration of the United Nations Conference on the Human Environment, and in particular principle 21, which states that «States…