From Longman Dictionary of Contemporary Englishgreenhouse effectˈgreenhouse efˌfect ●●○ noun [singular] SGPthe gradual warming of the air surrounding the Earth as a result of heat being trapped by pollution → global warming
Examples from the Corpus
greenhouse effect• In comparison, Venus experiences a greenhouse effect of over 500 °C while Mars has a smaller greenhouse effect of 10 °C.• However, emissions of NOx gases in the upper atmosphere have a greenhouse effect 100 times more powerful than C02.• Nitrous oxide Six percent of the current greenhouse effect.• This is the well-known greenhouse effect.• Neither can we guarantee that everywhere on Earth will be warmer as the greenhouse effect progresses.• They contribute 14 percent of the greenhouse effect and are increasing at the rate of 6 percent a year.• The answer is that the greenhouse effect is very weak on Mars.• Robert Maxwell reassured shareholders and the world at large that he had turned his giant mind to the greenhouse effect. 