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Antarctic Ozone Hole 2025
November 28 , 2025
15 hrs 0 min
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- The Antarctic ozone hole in 2025 was the 5th smallest since 1992, reported by NASA and National Oceanic and Atmospheric Administration (NOAA).
- Its largest size in early September was 8.83 million sq miles, which is 30% smaller than the record size in 2006.
- The ozone hole is an area in the stratosphere where ozone levels drop below 220 Dobson Units.
- The Montreal Protocol (1992) reduced harmful chemicals like CFCs (Chlorofluorocarbons), helping the ozone layer heal.
- Weather factors like temperature and air circulation also helped make the ozone hole smaller in 2025.
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