Montreal Protocol (1973) and the international agreement signed (1985 & 1987). The treaty is structured around several groups of halogenated hydrocarbons that deplete stratospheric ozone. All of the ozone depleting substances controlled by the Montreal Protocol contain either chlorine or bromine (substances containing only fluorine do not harm the ozone layer). Some ozone-depleting substances (ODSs) are not yet controlled by the Montreal Protocol, including nitrous oxide (N2O) For a table of ozone-depleting substances controlled by the Montreal Protocol see: For each group of ODSs, the treaty provides a timetable on which the production of those substances must be shot out and eventually
1987 Montreal Alouettes season 1987 Montreal Alouettes season The 1987 Montreal Alouettes played two preseason games before folding on June 24, 1987, just one day before their scheduled Thursday game against the Toronto Argonauts. The many years of bad ownership and dwindling fan support finally led to the CFL pulling the plug on the franchise and folding them. Since Sam Berger sold the team in 1981, it had shaky ownership and years of poor football performances, only playing .500 ball once (in 1985) and making the playoffs twice (winning only one game in 1985), leading to it playing in a to near-empty Olympic Stadium