Dirck Bouts paintings

Dirck Bouts paintings
Dante Gabriel Rossetti paintings
The Montreal Protocol regulating these substances is 20 years old this week. Member countries of the Montreal Protocol are meeting soon to review progress. Farman says that we need a much faster phase-out of ozone-destroying chemicals, and for the safe destruction of current stockpiles. Senior figures in the UN, as well as European and US politicians, are starting to listen.
Daniel Ridgway Knight paintings
The 1987 Montreal Protocol was designed to phase out chemicals such as chlorofluorocarbons which were found to be depleting the ozone layer in the Earth's stratosphere. Industrialized nations phased out almost all CFC production in 1995, with developing countries having a deadline of 2010.
Many of the substances, used in applications such as refrigeration, aerosols and fire-fighting, have been replaced with related families of chemicals including hydrochlorofluorocarbons (HCFCs). These chemicals are less destructive to the ozone layer, but because production in the developing world is now increasing rapidly, there is renewed concern about their impact.