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

People posted photos showing the bare mountain, some expressing surprise and others concerned over climate change. —Mari Yamaguchi, Los Angeles Times, 5 Nov. 2024

By Zoë Schlanger When delegates of the world gather in Baku, Azerbaijan, next week for the most important yearly meeting on climate change, their meetings will overlook a reeking lake, polluted by the oil fields on the other side. —Zoë Schlanger, The Atlantic, 5 Nov. 2024

Britain's Prince William began a four-day visit to South Africa on Monday, focusing on climate change and conservation initiatives. —David Faris, Newsweek, 4 Nov. 2024

Here's where Americans are fleeing their homes in droves because of climate change. —Nicole Fallert, USA TODAY, 4 Nov. 2024

Word History

First Known Use

1854, in the meaning defined above

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