Born on September 16
International Day for the Preservation of the Ozone Layer
The one environmental problem we actually fixed.
Next: September 16, 2027
Where it comes from
The UN General Assembly proclaimed 16 September World Ozone Day in 1994, commemorating the signing of the Montreal Protocol on that date in 1987. The protocol phased out the chlorofluorocarbons and related chemicals that were tearing a hole in the ozone layer over Antarctica, and it is the only UN treaty ever…
How it's celebrated
Schools teach the ozone story as the great environmental success; governments and UNEP report on the layer's recovery and on the newer Kigali Amendment, which targets climate-warming refrigerants. It is a rare environmental day with good news to share.
Did you know
The ozone hole was discovered by British Antarctic Survey scientists in 1985; the world had a binding treaty two years later.
Read the full story of International Day for the Preservation of the Ozone Layer
Star sign
Virgo · August 23 – September 22 · Earth sign
Careful and kind, the one who notices what everyone else missed.