ozone layer
noun
: an atmospheric layer at heights of about 20 to 30 miles (32 to 48 kilometers) that is normally characterized by high ozone content which blocks most solar ultraviolet radiation from entry into the lower atmosphere
Examples of ozone layer in a Sentence
Recent Examples on the Web
Subsequent amendments are driving the gradual recovery of the ozone layer, which remains on track to fully recover later this century as countries worldwide replace harmful substances with safer alternatives.
—
Daniel Peck, ABC News, 24 Nov. 2025
In the 1970s, CFCs were banned under the Montreal Protocol for depleting the ozone layer; they were replaced with HFCs, which don't harm ozone but have strong global warming effects that last hundreds of years.
—Michaila Byrne, MSNBC Newsweek, 13 Nov. 2025
The ozone layer has historically provided a critical defense between the potentially harmful rays of the sun and the people who live on the Earth’s surface, but climate change has served to weaken it, even causing holes within it in certain areas.
—William Jones, Ascend Agency, 11 Nov. 2025
As with the depletion of the ozone layer, everyone stands to lose from the development of superintelligence.
—Andrea Miotti, Time, 29 Oct. 2025
See All Example Sentences for ozone layer
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Daniel Peck, ABC News, 24 Nov. 2025
In the 1970s, CFCs were banned under the Montreal Protocol for depleting the ozone layer; they were replaced with HFCs, which don't harm ozone but have strong global warming effects that last hundreds of years.
—Michaila Byrne, MSNBC Newsweek, 13 Nov. 2025
The ozone layer has historically provided a critical defense between the potentially harmful rays of the sun and the people who live on the Earth’s surface, but climate change has served to weaken it, even causing holes within it in certain areas.
—William Jones, Ascend Agency, 11 Nov. 2025
As with the depletion of the ozone layer, everyone stands to lose from the development of superintelligence.
—Andrea Miotti, Time, 29 Oct. 2025
See All Example Sentences for ozone layer
Cite this Entry
“Ozone layer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ozone%20layer. Accessed 2 Dec. 2025.
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