climate change

noun

: significant and long-lasting change in the Earth's climate and weather patterns
The half-tonne … turtles were thought to have died out 30,000 to 40,000 years ago because of climate change.New Scientist
especially, in current use : such change associated with global warming
Concerns about greenhouse gas emissions and global climate change are renewed among scientists and the public with every new report about the possibility of melting icecaps and rising temperatures. Randy Showstack
Drought is a paleontological fact in the American West, but the latest desiccations have a new signature, and my region's climatologists, hydrologists, foresters, and water managers are nearly unanimous in their conviction that what we are seeing now is climate change, the anthropogenic kind, a consequence of too much CO2 and other greenhouse gases. Kenneth Brower

Examples of climate change 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.
Weather patterns like droughts fueled by climate change have disrupted major coffee growers including Brazil, reducing supplies of coffee beans. Greg Iacurci, CNBC, 12 Mar. 2025 Scientists have noticed longer allergy seasons in the country as warmer temperatures caused by climate change lead to more pollen in the air for longer periods of time. Michelle Marchante, Miami Herald, 12 Mar. 2025 That’s the decrease in America’s butterfly population since 2000 — a result of insecticides, climate change and habitat loss, according to a new study. Daniel Wine, CNN, 12 Mar. 2025 Since 2013, the student-run campaign People & Planet has sought to highlight communities worldwide that are most affected by climate change and has pushed schools to end their support of the fossil fuel industry through research, partnerships, and investments. Troy Aidan Sambajon, The Christian Science Monitor, 11 Mar. 2025 See All Example Sentences for climate change

Word History

First Known Use

1854, in the meaning defined above

Time Traveler
The first known use of climate change was in 1854

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Cite this Entry

“Climate change.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/climate%20change. Accessed 25 Mar. 2025.

Kids Definition

climate change

noun
: significant and long-lasting change in the earth's climate and weather patterns
especially : such change associated with global warming
Last Updated: - Updated example sentences
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