greenhouse gas
noun
: any of various gaseous compounds (such as carbon dioxide or methane) that absorb infrared radiation, trap heat in the atmosphere, and contribute to the greenhouse effect
Water vapor is an important gas for the study of climate and weather because of its role as a natural greenhouse gas as well as its relationship to clouds and precipitation.—
Mohi Kumar
Mohi KumarScientists now recognize tropospheric ozone—a component of smog—as a greenhouse gas as well as an eye and lung irritant.—Science News
Science NewsWhile it may not be possible to eliminate all greenhouse gas emissions, it is possible to offset some of the emissions that do still occur. Offsetting involves supporting projects that reduce or sequester greenhouse gas emissions in another location.—Tyson Miller
Tyson MillerLivestock emit 14.5 percent of all greenhouse gas emissions each year. Most of that is from cows.—Marley Walker
Marley WalkerExamples of greenhouse gas in a Sentence
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Earlier that year, the Connecticut General Assembly passed a sweeping climate change bill with an ambitious goal to reduce greenhouse gas emissions 45% by 2030, 70% by 2040, and to achieve economy-wide net-zero levels by 2050.
—Krisztian Elcsics, Hartford Courant, 12 May 2026
Scientists emphasize that reducing greenhouse gas emissions must remain the priority to protect Earth’s complex ecosystems.
—Annika Hammerschlag, Los Angeles Times, 12 May 2026
Conventional treatment processes also add about 21 million metric tons of greenhouse gases to the atmosphere annually.
—New Atlas, 9 May 2026
And while the law largely governs toxins, the rollback has also undermined action on climate change, including repealing the legal theory used to classify greenhouse gas emissions like carbon dioxide as regulated pollutants.
—Mark Olalde, ProPublica, 8 May 2026
See All Example Sentences for greenhouse gas
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Krisztian Elcsics, Hartford Courant, 12 May 2026
Scientists emphasize that reducing greenhouse gas emissions must remain the priority to protect Earth’s complex ecosystems.
—Annika Hammerschlag, Los Angeles Times, 12 May 2026
Conventional treatment processes also add about 21 million metric tons of greenhouse gases to the atmosphere annually.
—New Atlas, 9 May 2026
And while the law largely governs toxins, the rollback has also undermined action on climate change, including repealing the legal theory used to classify greenhouse gas emissions like carbon dioxide as regulated pollutants.
—Mark Olalde, ProPublica, 8 May 2026
See All Example Sentences for greenhouse gas
Cite this Entry
“Greenhouse gas.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/greenhouse%20gas. Accessed 17 May. 2026.
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