2023年7月24日 · There used to be a huge problem, and because of that, there was a hole, especially in the Antarctic, in the ozone layer. Ozone works as Earth’s natural sunscreen. It prevents harmful UV radiation to come down to the surface to …

2022年3月22日 · 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.

2025年2月1日 · View the latest status of the ozone layer over the Antarctic, with a focus on the ozone hole. Satellite instruments monitor the ozone layer, and we use their data to create the images that depict the amount of ozone. Click any map image to bring up a new page with a high-resolution image.

How is the ozone layer created? The earth’s ozone layer is composed of molecules of ozone, or O 3. These molecules provide a protective layer around the earth, absorbing a large portion of the sun’s radiation, particularly some of the harmful ultraviolet (UV) rays that cause sunburn. Ozone is naturally created when UV radiation hits oxygen ...

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 (UVB) light from passing through the Earth's atmosphere.

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).

2024年10月30日 · A hole that opens annually in the ozone layer over Earth’s southern pole was relatively small in 2024 compared to other years. Scientists with NASA and the National Oceanic and Atmospheric Administration (NOAA) project the ozone layer could fully recover by 2066.

2024年11月28日 · The ozone layer protects life on Earth from the sun’s most harmful rays - and scientists say the ozone layer hole is continuing to shrink and could fully repair by 2066. The Montreal Protocol to eradicate ozone-depleting substances, signed by a record number of countries in 1987, has been a success.

2025年1月28日 · When chlorine and bromine reach the ozone, they destroy its molecules; one chlorine atom can destroy over 100,000 ozone molecules, leaving holes in the ozone layer. These effects made it clear: It would be crucial to regulate CFCs. The phase-out of CFCs progressed swiftly, driven by widespread public awareness of the problem’s severity.

2024年10月30日 · Healing continues in the atmosphere over the Antarctic: a hole that opens annually in the ozone layer over Earth’s southern pole was relatively small in 2024 compared to other years. Scientists with NASA and the National Oceanic and Atmospheric Administration (NOAA) project the ozone layer could fully recover by 2066.