4 days ago · What is the ozone hole? Each year for the past few decades during the Southern Hemisphere spring, chemical reactions involving chlorine and bromine cause ozone in the …

Jan 6, 2026 · NASA and NOAA recently announced good news concerning the ozone hole. What are lessons about science, policy and skepticism for other challenges?

Mar 5, 2025 · In 1985, scientists discovered a “hole” in the ozone layer over Antarctica that opened up during the austral spring, between September and December. This seasonal ozone …

Nov 24, 2025 · This year’s ozone hole over the Antarctic ranked as the fifth smallest since 1992, according to a new report by NOAA and NASA scientists.

Nov 24, 2025 · Antarctic ozone today: The 2025 ozone hole is growing and now covers 20 million square kilometres (msqkm), much larger than average. The polar vortex is near its maximum …

1 day ago · In the mid-1980s, scientists published a startling finding–a giant hole in the ozone layer over Antarctica. That’s the protective shield that blocks large amounts of harmful UV …

Dec 22, 2025 · The closing of this year's ozone hole over the Antarctic continues the positive trend of smaller gaps in Earth's ozone layer in recent years, perhaps leading to an eventual, …

Oct 31, 2024 · To monitor the state and recovery of the ozone layer, each year, the final diameter and depth of a ‘hole’ that opens annually in the ozone layer over Antarctica is measured. For …

Sep 16, 2025 · Forty years after global policymakers began grappling with the crisis posed by a gaping hole in Earth’s protective ozone layer over Antarctica, the damage is continuing to heal, …

May 19, 2025 · It's been 40 years since groundbreaking research announced the discovery of a hole in the ozone layer, a revelation that launched a rapid and successful effort to ban …