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Their discovery, the thinning of the ozone layer over Antarctica, came to be known as the ozone hole. As news of the discovery spread, alarm rippled around the world.
What is the Ozone Hole? The ozone hole is not technically a “hole” where no ozone is present, but is actually a region of exceptionally depleted ozone in the stratosphere over the Antarctic that happens at the beginning of Southern Hemisphere spring (August–October).
24 de jul. de 2023 · Although there are ozone-depleting gases everywhere in the atmosphere, the ozone hole forms in the Antarctic because of the special weather conditions there. The very cold temperatures in the Antarctic can form ice clouds called polar stratospheric clouds.
Hace 5 días · 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 southern polar region to be destroyed rapidly and severely. This depleted region is known as the “ozone hole”.
16 de oct. de 2019 · But, as NASA atmospheric scientist Nathaniel Livesey explains, today, thanks to the phase-out of CFCs, Earth’s ozone hole is in recovery. He says the turnaround provides a great example of what humans can do when they work together to solve a global atmospheric problem.
1 de nov. de 2023 · The 2023 Antarctic ozone hole reached its maximum size on Sept. 21, according to annual satellite and balloon-based measurements made by NASA and NOAA. At 10 million square miles, or 26 million square kilometers, the hole ranked as the 12th largest single-day ozone hole since 1979.
26 de oct. de 2022 · On Oct. 5, 2022, those satellites observed a single-day maximum ozone hole of 10.2 million square miles (26.4 million square kilometers), slightly larger than last year. An explainer video outlining the fundamentals of what causes the Ozone Hole, its effects on the planet, and what scientists predict will happen in future decades.
