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gross zero

American  
[grohs zeer-oh] / ˈgroʊs ˈzɪər oʊ /

noun

  1. the theoretical elimination of all greenhouse gas emissions and especially carbon emissions (sometimes used attributively).

Etymology

Origin of gross zero

First recorded in 2015–20

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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