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
More than 90% of the excess heat trapped by greenhouse gases has been absorbed by the oceans, creating conditions that favor rapid intensification and stronger peak winds.
—Julia Jacobo, ABC News, 31 Dec. 2025
In a pre-pandemic year, cruise ships at PortMiami emitted as much greenhouse gas in one year as almost 7,000 houses — a bigger city than Pinecrest.
—Miami Herald, 31 Dec. 2025
Under that initiative, DHL and CMA CGM expect to slash roughly 25,000 metric tons of greenhouse gas (GHG) emissions for ocean freight shipped through DHL’s GoGreen Plus and CMA CGM’s ACT+ programs.
—Glenn Taylor, Sourcing Journal, 31 Dec. 2025
David Fifarek, senior director of transportation services at Milwaukee Public Schools, said the initiative is aimed at lowering greenhouse gas emissions and reducing asthma risks.
—Madeline Heim, jsonline.com, 31 Dec. 2025
See All Example Sentences for greenhouse gas
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Julia Jacobo, ABC News, 31 Dec. 2025
In a pre-pandemic year, cruise ships at PortMiami emitted as much greenhouse gas in one year as almost 7,000 houses — a bigger city than Pinecrest.
—Miami Herald, 31 Dec. 2025
Under that initiative, DHL and CMA CGM expect to slash roughly 25,000 metric tons of greenhouse gas (GHG) emissions for ocean freight shipped through DHL’s GoGreen Plus and CMA CGM’s ACT+ programs.
—Glenn Taylor, Sourcing Journal, 31 Dec. 2025
David Fifarek, senior director of transportation services at Milwaukee Public Schools, said the initiative is aimed at lowering greenhouse gas emissions and reducing asthma risks.
—Madeline Heim, jsonline.com, 31 Dec. 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 2 Jan. 2026.
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