Technological and industrial history of 20th-century Canada the Keele Valley Landfill was operated by the City of Toronto from 1983 until 2002, when it was closed because it was full. Chlorofluorocarbons (CFCs), the gas propellants used in aerosol spray cans, became a target for environmental concern in the 1970s and 1980s when research demonstrated that they had a harmful effect on the ozone layer in the atmosphere. The international Montreal Protocol of 1989 banned the use of these substances and they were subsequently replaced with volatile hydrocarbons. The problem with choice to reuse is still not available. There are many products that don't need to be recycled
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