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published this article page no 20 After
it was found in 1985 the International Montreal Protocol was framed in 1987. It is the only protocol
ratified at the United Nations that bans chlorine compounds in
refrigerators and aerosols.
Unfortunately the reason for the
reduction of ozone hole is not the steps to reduce the usage
of chlorine compounds. It is because of climate change. Climate Changea Reason
Chlorine in air requires cold temperatures in stratosphere to form chemical
clouds that actually react with ozone. The clouds now go away as they are
being warmed up due to elevated temperatures. The temperatures were 29 degrees
warmer than the average mahendra online test registration.

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