5 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 …

Ozone depletion and the ozone hole have generated worldwide concern over increased cancer risks and other negative effects. The ozone layer prevents harmful wavelengths of ultraviolet …

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 …

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, …

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, …

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 …

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 …

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 …

Nov 28, 2024 · The ozone layer protects life on Earth from the sun’s harmful rays, and scientists say the hole in the ozone layer is shrinking and could be fully repaired by 2066.

3 days ago · Antarctic Ozone Hole Closes Earliest Since 2019 – A Major Win for Global Environmental Policy December 26, 2025 – In a burst of hopeful news for the planet, the …