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The 2025 Antarctic ozone hole was the smallest since 2019, signaling ongoing recovery due to global environmental efforts.
The ozone hole over Antarctica in 2025 was the smallest since 2019, peaking at 21 million square kilometers before closing earlier than usual, according to the EU’s Copernicus Atmosphere Monitoring Service.
NASA and NOAA ranked it as the fifth smallest since 1992, reflecting continued recovery linked to the global phaseout of ozone-depleting chemicals under the Montreal Protocol.
Scientists attribute the improvement to international cooperation, with the ozone layer projected to return to pre-1980 levels by 2066.
While recent volcanic activity may have influenced past anomalies, the trend underscores the effectiveness of environmental regulations in protecting the stratospheric ozone layer, which shields Earth from harmful UV radiation.
El agujero de ozono de la Antártida de 2025 fue el más pequeño desde 2019, lo que indica una recuperación en curso debido a los esfuerzos ambientales globales.