The United Nations declared this day as the International Day for the Preservation of the Ozone Layer. It is the day the Montreal Protocol was signed.
Showing posts with label Ozone Day. Show all posts
Showing posts with label Ozone Day. Show all posts
World Ozone Day Photos
The United Nations declared this day as the International Day for the Preservation of the Ozone Layer. It is the day the Montreal Protocol was signed.
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