the holes in the ozone layer are located near the earth's surface.
the holes in the ozone layer are located near the earth's surface.
where are the holes in the ozone layer located?
near the earth's surface
Na
Na
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.









































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.
international day for the preservation of the ozone layer