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
Recent Examples on the Web
The two billion units operating worldwide are responsible for 7% of annual global greenhouse gas emissions, according to the United Nations Environment Program—a figure that is expected to double by 2030 and triple by 2050, when more than five billion units are projected to be in use.
—Jeffrey Kluger, Time, 25 June 2025
Food systems currently contribute around a quarter of greenhouse gas emissions while nearly 10% of people globally experience hunger.
—Dawn Attride, Forbes.com, 24 June 2025
In 2023, France banned short-haul domestic flights where train journeys of 2.5 hours were available instead to help reduce greenhouse gas emissions.
—CNN Money, 23 June 2025
Trump said the new rules were designed to displace California as the nation’s leader in fighting air pollution and greenhouse gases.
—David G. Savage, Boston Herald, 22 June 2025
See All Example Sentences for greenhouse gas
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Jeffrey Kluger, Time, 25 June 2025
Food systems currently contribute around a quarter of greenhouse gas emissions while nearly 10% of people globally experience hunger.
—Dawn Attride, Forbes.com, 24 June 2025
In 2023, France banned short-haul domestic flights where train journeys of 2.5 hours were available instead to help reduce greenhouse gas emissions.
—CNN Money, 23 June 2025
Trump said the new rules were designed to displace California as the nation’s leader in fighting air pollution and greenhouse gases.
—David G. Savage, Boston Herald, 22 June 2025
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 8 Jul. 2025.
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