[CLSTR]
< Back to situations

Monitor this situation.

[SITUATION] · [ACTIVE] · [INTERNATIONAL]

2 clusters · 73 sources · 7 days · First seen · Last updated

Antarctic ozone hole status and recovery

Overview

The Antarctic ozone hole has shown significant seasonal and long-term fluctuations. In September 2026, the hole expanded rapidly to an estimated 25 million square kilometers, which was approximately five million square kilometers larger than the historical average for that period.

However, this seasonal expansion exists within a broader context of gradual recovery. Reports from 2025 indicated the ozone hole reached one of its smallest sizes in two decades, with depth and extent significantly lower than historical averages recorded between 1990 and 2010. According to the World Meteorological Organization (WMO), for the second consecutive year, the hole's size remained significantly below the historical average recorded between 1990 and 2010.

This recovery is attributed to the success of the Montreal Protocol, an international treaty signed by 197 countries and the European Union to phase out ozone-depleting substances like chlorofluorocarbons (CFCs). The production and consumption of these chemicals have decreased by over 99 percent. While the ozone layer shows signs of steady regeneration, experts suggest full recovery may still take several decades, with some estimates suggesting it could reach full recovery by approximately 2050. Despite these trends, some data indicates that ultraviolet radiation has increased by up to 20 percent in parts of Europe since 1995.

Entities

Celeste Saulo · Montreal Protocol · World Meteorological Organization · Antarctica · European Space Agency

Claims

What the coverage asserts, and how many sources carry each claim.

Coverage disagrees

Sources make claims that cannot both be true. CLSTR reports the disagreement; it does not decide who is right.

  • "The Antarctic ozone hole in 2025 was one of the smallest in recent decades." 10perc.hu · noticiasaldiayalahora.co · promotions.hu

    vs

    "The ozone hole reached approximately 25 million square kilometers by late September this year." 10perc.hu

    The first claim describes the 2025 ozone hole as one of the smallest in recent decades, while the second claim asserts it reached a specific large size of 25 million square kilometers.

Timeline

  1. about 11 hours ago

    [INTERNATIONAL] 4 sources
    Antarctic ozone hole reaches one of its smallest sizes in decades

    The Antarctic ozone hole was among its smallest in decades in 2025, signaling progress in ozone layer recovery driven by the Montreal Protocol's phase-out of harmful chemicals.

  2. 7 days ago

    [INTERNATIONAL] 69 sources
    Antarctic ozone hole reaches 25 million square kilometers

    The Antarctic ozone hole reached approximately 25 million square kilometers in mid-September 2026, exceeding seasonal averages, though scientists report a long-term recovery trend due to the Montreal Protocol.

Sources

10perc.hu · allgaeuer-anzeigeblatt.de · allgaeuer-zeitung.de · augsburger-allgemeine.de · bbv-net.de · berliner-kurier.de · canalalentejo.sapo.pt · chiesadimilano.it · cnn.iprima.cz · ct24.ceskatelevize.cz · daswetter.com · der-warnemuender.de · diariodenavarra.es · e15.cz · europeonline-magazine.eu · extratipp.com · falter.at · feelgreen.de · fehmarn24.de · focus.de · fricktal.info · halternerzeitung.de · hna.de · ikz-online.de · imtest.de · innovationnewsnetwork.com · javanews.al · kreiszeitung.de · kurier.at · kurierverlag.de · lapatria.bo · leinetal24.de · mannheim24.de · marler-zeitung.de · meinegemeinde.vol.at · merkur-online.de · montecristinoticias.com · muensterlandzeitung.de · newsfeed.zeit.de · newsflash24.de · newslog.com.br · newsprima.it · nn.de · nogeoingegneria.com · nordbayern.de · noticiasaldiayalahora.co · noticiasambientales.com.ar · nrz.de

This summary has been updated 1 time: see revision history