Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
Montreal Protocol

The Montreal Protocol relative to substances which deplete the ozone layer is an international agreement whose objective is to reduce by half-and then eliminate- the substances which destroy the stratospheric ozone layer. It also banned the  productio of chlorine-containing compounds, such as CFCs (chlorofluorocarbons) or HCFCs (hydro chlorofluorocarbons). It was signed in Montreal by 24 countries and by the European Economic Community on the 16th of September 1987. En 2009, 196 countries signed it, making it the first and only environmental treaty having universal participation.


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