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The United Nations International Day for the Preservation of the Ozone Layer is celebrated each year around the world on September 16, a date that marks the 1987 signing of the Montreal Protocol.
This international treaty was enacted to protect the ozone layer by eliminating the use of ozone-depleting substances and has led to the phase-out of 99 per cent of ozone-depleting chemicals in refrigerators, air-conditioners and many other products. These efforts have provided protection for the ozone layer and in doing so, helped to improve human and ecosystem health by limiting incoming harmful UV radiation. The phasing out of HFC’s and CFC’s has also contributed significantly to combating climate change by reducing the atmospheric concentration of these known contributors to global warming.
This year’s theme, “Montreal Protocol@35: global cooperation protecting life on earth”, recognizes the impact the Montreal Protocol has had on climate change and the continued need for global collaboration and cooperation to protect life on earth for future generations.
To help celebrate this important occasion, primary and secondary school educators throughout the world are encouraged to organize classroom activities that focus on topics related to ozone, the ozone layer and the connection between ozone action and climate change.
Why Care About The Ozone Layer?