In 2025, the ozone hole shrunk to one of its smallest sizes in decades

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In 2025, the Antarctic ozone hole shrunk to one of its smallest sizes in decades, reflecting the success of global efforts to protect the ozone layer from ultraviolet radiation according to the World Meteorological Organization.

The Antarctic ozone hole in 2025 was one of the smallest in decades—a testament to the continuing success of international action to protect Earth's ozone layer, which shields us from the sun's harmful ultraviolet rays, according to a new report from the World Meteorological Organization (WMO).