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
It was established in 1992 to inventory and begin to address the primary sources of greenhouse gas pollution.
—Denise Chow, NBC news, 8 Jan. 2026
The buildings sector, the largest source of New York’s greenhouse gas pollution, is almost entirely under state purview, free of federal interference.
—Anshul Gupta, New York Daily News, 7 Jan. 2026
The convention committed countries to inventories of all sources and sinks of greenhouse gases, such as carbon dioxide, and to establish national climate change programs.
—Dinah Voyles Pulver, USA Today, 7 Jan. 2026
The law set statewide goals for dramatically cutting greenhouse gas emissions from 2005 levels.
—Judith Kohler, Denver Post, 7 Jan. 2026
See All Example Sentences for greenhouse gas
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Denise Chow, NBC news, 8 Jan. 2026
The buildings sector, the largest source of New York’s greenhouse gas pollution, is almost entirely under state purview, free of federal interference.
—Anshul Gupta, New York Daily News, 7 Jan. 2026
The convention committed countries to inventories of all sources and sinks of greenhouse gases, such as carbon dioxide, and to establish national climate change programs.
—Dinah Voyles Pulver, USA Today, 7 Jan. 2026
The law set statewide goals for dramatically cutting greenhouse gas emissions from 2005 levels.
—Judith Kohler, Denver Post, 7 Jan. 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 12 Jan. 2026.
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