September 16 is the International Day for the Preservation of the Ozone Layer. The World Meteorological Organization issued the “Ozone Bulletin” on the same day, saying that the 2025 Antarctic ozone hole will be the smallest in decades, which proves that international action to protect the Earth's ozone layer continues to be effective. According to the communiqué, the 2025 Antarctic ozone hole ranking is the fourth to fifth smallest since serious consumption patterns were observed in 1992. This is the second year in a row that the depth and extent of the Antarctic ozone hole is significantly lower than the average from 1990 to 2010.

September 16 is the International Day for the Preservation of the Ozone Layer. The World Meteorological Organization issued the “Ozone Bulletin” on the same day, saying that the 2025 Antarctic ozone hole will be the smallest in decades, which proves that international action to protect the Earth's ozone layer continues to be effective. According to the communiqué, the 2025 Antarctic ozone hole ranking is the fourth to fifth smallest since serious consumption patterns were observed in 1992. This is the second year in a row that the depth and extent of the Antarctic ozone hole is significantly lower than the average from 1990 to 2010.