Hole in Antarctic ozone layer shrinks to smallest since 2019, scientists say
The Antarctic ozone hole this year was the smallest and shortest-lived since 2019, indicating steady recovery due to the ban on ozone‑depleting substances.
Ozone layer on track for full recovery after UN treaty "success story"
The ozone layer is recovering due to the Montreal Protocol and declining ozone-depleting substances, but legacy chemicals will delay full Antarctic recovery until the late 2060s.