The NOAA-Nasa report, released this week, credits this success to an international agreement signed in 1992 to phase out ozone-depleting chemicals. Photo: Nasa The NOAA-Nasa report, released this week, credits this success to an international agreement signed in 1992 to phase out ozone-depleting chemicals. Photo: NasaThe NOAA-Nasa report, released this week, credits this success to an international agreement signed in 1992 to phase out ozone-depleting chemicals. Photo: NasaNewsUSOzone layer on track for recovery this century as Antarctic hole shrinksScientists credit international agreements phasing out CFCs for stabilising the layerThe NationalNovember 26, 2025 English Ozone hole was the fifth-smallest since 1992, keeping global recovery on track later this century, according to Nasa and the US weather agency.
An international 1992 agreement to phase out ozone-depleting chemicals is credited with shrinking the Antarctic hole and supporting long-term recovery.
At peak this season, the hole averaged about 18.71 million sq km, roughly 30 per cent smaller than the 2006 record.
Stephen Montzka, a senior scientist, said Antarctic ozone-depleting substances have fallen by about a third since peaking around 2000, aiding healing.
“As predicted, we’re seeing ozone holes trending smaller in area,” said Paul Newman, a senior scientist leading Nasa’s ozone research team.
Published: November 26, 2025 4:11 pm
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