global warming


Definition of global warming 

: 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

Examples of global warming in a Sentence

World leaders will address the problem of global warming.

Recent Examples on the Web

The Intergovernmental Panel on Climate Change (IPCC) has delivered an ultimatum of sorts on the fate of the planet with regard to global warming. David Grossman, Popular Mechanics, "'Unprecedented Changes' Needed in Next 12 Years to Combat Global Warming, UN Warns," 8 Oct. 2018 In 2017, At the Group of 20 summit in Hamburg, Germany, world powers lined up against President Trump on climate change, reaffirming their support for international efforts to fight global warming., "This day in history," 8 July 2018 California has thrown great effort into promoting electric cars as a way to fight global warming. David R. Baker,, "Fuel-cell ferry coming to San Francisco Bay," 25 June 2018 Ontario’s Progressive Conservatives will follow through on a campaign promise to withdraw from the environmental program that required companies to buy credits to offset pollution blamed for global warming. Greg Quinn,, "Ontario to Scrap Carbon-Cutting Plan as It Expands Elsewhere," 15 June 2018 Carbon dioxide — the gas scientists say is most responsible for global warming — peaked again at record levels last month, federal scientists announced Thursday. Doyle Rice, USA TODAY, "Carbon dioxide reaches another record level in Earth's atmosphere," 7 June 2018 That last point was a reference to Macron’s work to revive the U.S. role in the Paris climate accord to fight global warming, another international agreement Trump has spurned. Time, "President Trump Brushes 'Dandruff' Off French President Macron’s Suit as the Two Leaders Tussle Over Iran," 25 Apr. 2018 In her case, the project is co-sponsored by the Entergy Corporation, Comite Resources, and The Climate Trust, which are combining to voluntarily reduce carbon emissions blamed for global warming. Mark Schleifstein,, "Louisiana water pollution credit sales plan draws questions," 24 Jan. 2018 Yet Colleen Kredell of Next 10, a Bay Area advocacy group that studies climate change and economics, said state leaders can use the results to inspire other countries to do more to fight global warming. Dale Kasler, sacbee, "California beats its 2020 goals for cutting greenhouse gases," 11 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'global warming.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of global warming

1952, in the meaning defined above

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Last Updated

13 Nov 2018

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The first known use of global warming was in 1952

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More Definitions for global warming

global warming


English Language Learners Definition of global warming

: the recent increase in the world's temperature that is believed to be caused by the increase of certain gases (such as carbon dioxide) in the atmosphere

global warming


Kids Definition of global warming

: a warming of the earth's atmosphere and oceans that is thought to be a result of air pollution

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