International Day for the
Preservation of the Ozone Layer (informally and simply called Ozone
Day) is celebrated on September 16 designed by the United
Nations General Assembly. This
designation had been made on December 19, 2000, in commemoration of the date,
in 1987, on which nations signed the Montreal Protocol on Substances that Deplete the Ozone Layer.
In 1994, the UN General
Assembly proclaimed 16 September the International Day for the Preservation of
the Ozone Layer, commemorating the date of the signing, in 1987, of the
Montreal Protocol on Substances that Deplete the Ozone Layer. The
closure of the hole in the ozone layer was observed 30 years after the protocol
was signed.
Due to the nature of the
gases responsible for ozone
depletion their chemical effects are expected
to continue for between 50 and 100 years.
0 comments: