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.
Millions of people across more than 150 countries participated in the demonstrations, demanding urgent action to address climate change. Arizona Republic, AZCentral.com, 27 Sep. 2025 For instance, portable cold atom systems could provide navigation without GPS, detect underground structures, monitor climate change with unprecedented detail, and even enable space missions to test gravity and search for new particles. Rupendra Brahambhatt, Interesting Engineering, 27 Sep. 2025 Hurricanes have become more severe over the years, as climate change make storms stronger and more frequent. Alana Wise, NPR, 27 Sep. 2025 They are designed to protect homes and businesses against the type of winter storms that have severely flooded the low-lying community of Alviso multiple times with water up to 6 feet deep and which are posing more risk as sea level rises due to climate change. Paul Rogers, Mercury News, 26 Sep. 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 4 Oct. 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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