Ozone depletion | Facts, Effects, & Solutions | Britannica
WEBOzone depletion, gradual thinning of Earth’s ozone layer caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. The thinning is most pronounced in the …
Ozone depletion - Wikipedia
WEBThe total amount of ozone in the stratosphere is determined by a balance between photochemical production and recombination. Ozone can be destroyed by a number of free radical catalysts; the most important are the hydroxyl radical (OH·), nitric oxide radical (NO·), chlorine radical (Cl·) and bromine radical (Br·).
Information on Ozone and Ozone Depletion | US EPA
WEBJan 9, 2024 · Learn about the consequences of ozone depletion and UV-B for human health and the environment. Ozone-Depleting Substances. See a list of chemicals categorized as ozone-depleting substances (ODS) under the Montreal Protocol. Current State of the Ozone Layer. Learn about the recovery of the ozone layer.
Ozone layer facts and information - National Geographic
WEBJan 10, 2023 · Find out what caused the ozone hole, and how the 1989 Montreal Protocol sought to put an end to ozone depletion.
Basic Ozone Layer Science - US EPA
WEBSep 17, 2024 · Ozone Depletion. When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere.
Scientific Assessment of Ozone Depletion: 2022 - National …
WEBNew studies are assessed that quantify the effects of ozone depleting substances and ozone changes on the climate system, including atmospheric temperatures and circulation, the ocean and the cryosphere.
Scientific Assessment of Ozone Depletion: 2022 - National …
WEBThe questions and answers address the nature of atmospheric ozone, the chemicals that cause ozone depletion, how global and polar ozone depletion occur, the extent of ozone depletion, the success of the Montreal Protocol, the possible future of the ozone layer, and the protection against climate change now provided by the Kigali Amendment.
NASA Ozone Watch: Latest status of ozone
WEB6 days ago · 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.
Scientific Assessment of Ozone Depletion: 2022 - National …
WEBThe 2022 WMO/UNEP Ozone Assessment contains the most up-to-date understanding of ozone depletion, reflecting the thinking of hundreds of international scientific experts who contribute to its preparation and review.
Ozone Layer - Our World in Data
WEBThe political agreements were very effective. Since then, global emissions have fallen by more than 99%. The ozone holes have stopped growing and are now starting to close. This page includes all of our data, visualizations, and writing on the ozone layer, its depletion, and its path to recovery.