Environmental policy of the United States from the sun. Chlorofluorocarbons (CFCs), which were used beginning in the 1930s in a number of important areas, were determined in 1974 to be responsible for much of the depletion of the ozone layer. Four years later, the EPA and FDA banned CFCs in aerosol cans. As research in the 1980s indicated that the problem was worse than before, and revealed a controversial massive hole in the ozone layer over Antarctica, three international agreements were made to reduce the ozone-damaging substances- the Vienna Convention, the 1987 Montreal Protocol, and a third agreement in 1990 in London. In the United States,
The Rise and Fall of English Montreal The Rise and Fall of English Montreal The Rise and Fall of English Montreal is a 1993 Canadian documentary film directed by William Weintraub and produced by the National Film Board of Canada in Montreal. The film deals with exodus of English-speaking Quebecers that began in the 1960s and was accelerated by the Quebec general election, 1976. The film includes interviews with English-speaking professionals and students that are preparing to leave Montreal, joining an exodus of 300,000 anglophones that left the province in the last two decades. This exodus is reflected in over 100 English-speaking schools that have closed in