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
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HFAs aren’t as harmful for the ozone layer as chlorofluorocarbon formulation inhalers that were phased out in the US from 2009 to 2013.
—
Jen Christensen, CNN Money, 6 Oct. 2025
Sam Johnson had decided to end a successful spray deodorant product line because the propellant in the cans used chlorofluorocarbons (CFCs), the chemical compound harming the protective ozone layer in the earth's atmosphere.
—Jeff Young, MSNBC Newsweek, 3 Oct. 2025
Only the former shows clear progress away from the planetary boundary, as a result of the success of the Montreal Protocol, the international agreement through which countries are phasing out chemicals that erode Earth’s protective ozone layer.
—Andrea Thompson, Scientific American, 3 Oct. 2025
The 2016 Kigali Amendment to the Montreal Protocol, which commits countries to phasing out hydrofluorocarbons (HFCs) – greenhouse gases that don't harm the ozone layer like CFCs, but still trap heat in the atmosphere – has been ratified by 164 parties so far.
—New Atlas, 20 Sep. 2025
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Jen Christensen, CNN Money, 6 Oct. 2025
Sam Johnson had decided to end a successful spray deodorant product line because the propellant in the cans used chlorofluorocarbons (CFCs), the chemical compound harming the protective ozone layer in the earth's atmosphere.
—Jeff Young, MSNBC Newsweek, 3 Oct. 2025
Only the former shows clear progress away from the planetary boundary, as a result of the success of the Montreal Protocol, the international agreement through which countries are phasing out chemicals that erode Earth’s protective ozone layer.
—Andrea Thompson, Scientific American, 3 Oct. 2025
The 2016 Kigali Amendment to the Montreal Protocol, which commits countries to phasing out hydrofluorocarbons (HFCs) – greenhouse gases that don't harm the ozone layer like CFCs, but still trap heat in the atmosphere – has been ratified by 164 parties so far.
—New Atlas, 20 Sep. 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 8 Oct. 2025.
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