International Day for the Preservation of the Ozone Layer

September 16 was designated by the United Nations General Assembly as the International Day for the Preservation of the Ozone Layer. 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.

Ozone hole over Southern Hemisphere in 1957–2001

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.[1]

The closure of the hole in the ozone layer was observed 30 years after the protocol was signed.[2] Due to the nature of the gases responsible for ozone depletion their chemical effects are expected to continue for between 50 and 100 years.[2]

References

Deepshikha, Singh. "Ms". ABC Live. ABC Live. Retrieved 17 September 2016.
Dani Cooper. "Hole in the ozone layer is finally 'healing'". ABC News. Australian Broadcasting Corporation. Retrieved 24 April 2017.

External links

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International Day for the Preservation of the Ozone Layer

See also

References

External links