global warming

noun

: an increase in the earth's atmospheric and oceanic temperatures widely predicted to occur due to an increase in the greenhouse effect resulting especially from pollution
A Russian-owned tanker, built to traverse the frozen waters of the Arctic, completed a journey in record time from Europe to Asia this month, auguring the future of shipping as global warming melts sea ice.Russell Goldman
Debates about stem cells, global warming, and alternative energy might be less contentious if the scientific issues behind them were better understood.Elizabeth Gettelman
The development is also meant to boost tourism in Zermatt, which, like many Alpine towns worried about the effects of global warming on winter tourism, is exploring ways to draw visitors throughout the year.Jim Rendon
… I think it makes a compelling case, at least for most audiences, that humans are the cause of most of the global warming that is taking place, and that unless we take quick action the consequences for our planetary home could become irreversible.Al Gore

Examples of global warming in a Sentence

Recent Examples on the Web
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This effort in particular could prevent actual scientists and engineers from slowing the breakneck pace of global warming, which is inflicting a devastating toll on Americans in the form of extreme weather. Ramishah Maruf, Brandon Miller, CNN, 25 Mar. 2025 The Internet of Heaven offers new explanations for global warming and hints at the potential of clean energy, all while imagining a world where diseases have been conquered and the final frontier is the evolution of the human soul. William Jones, USA TODAY, 25 Mar. 2025 The Earth’s environment has deteriorated beyond the higher temperatures and more powerful storms of present-day global warming, but Bong does not go full post-apocalyptic. Chris O'Falt, IndieWire, 14 Mar. 2025 If global warming is uncontrolled, 90% of all coral reefs in the world will be functionally degraded by 2050. Ian Dexter Palmer, Forbes, 20 Mar. 2025 See All Example Sentences for global warming

Word History

First Known Use

1953, in the meaning defined above

Time Traveler
The first known use of global warming was in 1953

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Cite this Entry

“Global warming.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/global%20warming. Accessed 13 Apr. 2025.

Kids Definition

global warming

noun
: a warming of the earth's atmosphere and oceans that is widely predicted to result from an increase in the greenhouse effect caused by air pollution

More from Merriam-Webster on global warming

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