The international treaty governing the protection of stratospheric ozone. The Montreal Protocol on Substances That Deplete the Ozone Layer and its amendments control the phaseout of ODS production and use. Under the MP, several international organizations report on the science of ozone depletion, implement projects to help move away from ODS, and provide a forum for policy discussions. In addition, the Multilateral Fund provides resources to developing nations to promote the transition to ozone-safe technologies. (Source: US Environmental Protection Agency, 1999b).
international agreement, adopted in Montreal in 1987 and modified five times since then, that called for a freeze on production and use of halocarbons at 1986 levels by mid-1989, and over the next 10 years a reduction in CFC production by half. The U.S. and more than 180 other nations have ratified the agreement.
An international agreement to substantially reduce the use of chlorofluorocarbons (CFCs), a class of halocarbons that have been implicated in depletion of the Earth's ozone layer. Signed in January 1989 by most industrialized nations, the original document called for a 50 percent reduction in CFC use by 1992, relative to 1986 levels. A subsequent agreement (called the London Agreement) called for a complete elimination of CFC use by 2000.
The Montreal Protocol and its amendments control the phaseout of ozone depleting substances production and use. Under the Protocol, several international organizations report on the science of ozone depletion, implement projects to help move away from ozone depleting substances, and provide a forum for policy discussions. In the United States, the Protocol is implemented under the Clean Air Act Amendments of 1990. See ozone depleting substance, ozone layer.
An international agreement that entered into force in January 1989 to phase out the use of ozone-depleting compounds such as methyl chloroform, carbon tetrachloride, and CFCs. CFCs are potent greenhouse gases which are not regulated by the Kyoto Protocol since they are covered by the Montreal Protocol.