The Earth's ozone layer, which shields us from harmful UV radiation, is showing strong signs of recovery. In 2025, the Antarctic ozone hole was notably small and short-lived, confirming the long-term healing trend driven by global action.
The Success Story
Discovered in the 1980s, the ozone hole was caused by human-made chemicals like CFCs. The 1987 Montreal Protocol—ratified by all UN nations—phased out nearly 99% of these ODS, halting damage and enabling recovery.ODS levels have dropped by about one-third since 2000. Without the Protocol, this year's hole would have been over a million square miles larger, per NASA scientists.
Outlook
Projections indicate full recovery to 1980 levels by 2066 over Antarctica (earlier elsewhere). This triumph proves international cooperation can solve global environmental crises, offering inspiration amid climate challenges.
