Meaning of “global warming” in the English Dictionary

british dictionary

(Definition of “global warming” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"global warming" in American English

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global warmingnoun [ U ]

us /ˈɡloʊ·bəl ˈwɔr·mɪŋ/

a gradual increase in the earth’s temperature, caused by gases, esp. carbon dioxide, surrounding the earth

(Definition of “global warming” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"global warming" in Business English

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global warmingnoun [ U ]

uk us ENVIRONMENT

a gradual increase in world temperatures caused by gases in the air which prevent heat escaping into space and are a big threat to the future of the earth:

Reversing the effects of global warming may be the greatest challenge of our time.
Fossil fuels, such as coal and gas, produce greenhouse gases and contribute to global warming.
to combat/fight/tackle global warming

(Definition of “global warming” from the Cambridge Business English Dictionary © Cambridge University Press)