Today is World Ozone Day: Know its significance

The world observes September 16th as International Day for the Preservation of the Ozone Layer or World Ozone Day.

The day marks the anniversary of the Montreal Protocol which was signed to keep in check Ozone depleting substances.

Ozone is a protective layer that protects us from harmful radiations of the sun. It is crucial for sustaining life on this planet.


Montreal Protocol was an effort countries made to collaborate and protect the ozone layer.

The principal aim of the Montreal Protocol is to protect ozone layer by taking measures to control total global production and consumption of substances that deplete it

"The Protocol requires the control of nearly 100 chemicals, in several categories. For each group or annex of chemicals, the Treaty sets out a timetable for the phase-out of production and consumption of those substances, with the aim of eventually eliminating them completely," says the UN.