THE MONTREAL PROTOCOL
The Montreal protocol was an agreement to try and protect the earth's atmosphere. The treaty was
first signed in 1990 and was changed in 1992. The agreement was to stop or decrease as much ozone
depleting gasses and compounds from entering the atmosphere, gasses like chlorofluorcarbons (CFC's),
halons, carbon tetrachloride and methyl chloroform are to be stopped by the year 2000, and 2005 for
methyl chloroform. Evidence from scientists has shown that theses gasses were a serious threat
to the earths ozone layer, they deplete it by destoying ozone molecules which means that the earth
comes under more stress from UV rays from the sun, which causes skin cancer and various other
diseases to humans.
The "Vienna Convention for the protection of the ozone layer" was the framework under which the
Montreal protocol was decided upon.