follow Dictionary.com

It’s about time. We are now on Instagram!

global warming

noun
1.
an increase in the earth's average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect.
Origin
1975-1980
1975-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for global-warming

global warming

noun
1.
an increase in the average temperature worldwide believed to be caused by the greenhouse effect
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for global-warming

global warming

n.

by 1983 as the name for a condition of overall rising temperatures and attendant consequences as a result of human activity. Originally theoretical, popularized as a reality from 1989.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
global-warming in Science
global warming  
An increase in the average temperature of the Earth's atmosphere, especially a sustained increase great enough to cause changes in the global climate. The Earth has experienced numerous episodes of global warming through its history, and currently appears to be undergoing such warming. The present warming is generally attributed to an increase in the greenhouse effect , brought about by increased levels of greenhouse gases, largely due to the effects of human industry and agriculture. Expected long-term effects of current global warming are rising sea levels, flooding, melting of polar ice caps and glaciers, fluctuations in temperature and precipitation, more frequent and stronger El Niños and La Niñas, drought, heat waves, and forest fires. See more at greenhouse effect.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
global-warming in Culture

global warming definition


The term attached to the notion that the Earth's temperature is increasing due to the greenhouse effect.

Note: Whether global warming is actually happening is a subject of scientific debate.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for global warming

Few English speakers likely know this word

Word Value for global

9
13
Scrabble Words With Friends

Quotes with global-warming

Nearby words for global-warming