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climate change

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noun
  1. a long-term change in the earth's climate, especially a change due to an increase in the average atmospheric temperature: Melting glaciers imply that life in the Arctic is affected by climate change.
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Origin of climate change

First recorded in 1980–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for climate change

n.

1983, in the modern "global warming" sense.

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Online Etymology Dictionary, © 2010 Douglas Harper