Published on: September 21, 2023

World Ozone Day

World Ozone Day

Why in news?  World Ozone Day is observed annually on September 16.


About Vienna Convention for the Protection of the Ozone Layer

  • It is a multilateral environmental non-legally binding agreement signed in 1985
  • It aims international reductions in the production of chlorofluorocarbons due to their contribution to the destruction of the ozone layer, resulting in an increased threat of skin cancer
  • Provided the framework necessary to create regulatory measures in the form of the Montreal Protocol.

About Montreal Protocol

  • It is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances responsible for ozone depletion
  • Protocol has undergone nine revisions, in 1990 (London), 1991 (Nairobi), 1992 (Copenhagen), 1993 (Bangkok), 1995 (Vienna), 1997 (Montreal), 1998 (Australia), 1999 (Beijing) and 2016 (Kigali)
  • Ozone depleting substances controlled by the Montreal Protocol contain either chlorine or bromine

Kigali Amendment

  • The Kigali Amendment to the Montreal Protocol is legally binding and came into force from 1 January 2019.
  • The amendment aims to phase out Hydrofluorocarbons (HFCs), a family of potent greenhouse gases by the late 2040s.