carbon footprint

noun

: the amount of greenhouse gases and specifically carbon dioxide emitted by something (such as a person's activities or a product's manufacture and transport) during a given period

Examples of carbon footprint in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
New studies are beginning to show AI has a sizeable carbon footprint. Greta Cross, USA Today, 30 Mar. 2026 The project prioritizes natural ventilation, sunlight, and passive cooling, with about 70% of spaces not requiring air conditioning, which significantly reduces its carbon footprint. New Atlas, 28 Mar. 2026 In the case of Tiny House Shadow, each resident reduces his or her carbon footprint by 53% compared to life in a conventional house. Annabelle Dufraigne, Architectural Digest, 24 Mar. 2026 Or for the ecologically conscious, this is a low-carbon footprint (option). Nathaniel Percy, Oc Register, 20 Mar. 2026 See All Example Sentences for carbon footprint

Word History

First Known Use

1999, in the meaning defined above

Time Traveler
The first known use of carbon footprint was in 1999

Browse Nearby Words

Cite this Entry

“Carbon footprint.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carbon%20footprint. Accessed 1 Apr. 2026.

Kids Definition

carbon footprint

noun
: the amount of greenhouse gases and especially carbon dioxide given off by something (as a person's activities or a product's manufacture and transport) during a given period
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