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greenhouse gas

American  
[green-hous gas] / ˈgrinˌhaʊs ˌgæs /

noun

  1. any of the gases whose absorption of solar radiation is responsible for the greenhouse effect, including carbon dioxide, methane, ozone, and the fluorocarbons.


greenhouse gas British  

noun

  1. any gas that contributes to 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

greenhouse gas Scientific  
  1. Any of the atmospheric gases that contribute to the greenhouse effect by absorbing infrared radiation produced by solar warming of the Earth's surface. They include carbon dioxide (CO 2), methane (CH 4), nitrous oxide (N 2 O), and water vapor. Although greenhouse gases occur naturally in the atmosphere, the elevated levels especially of carbon dioxide and methane that have been observed in recent decades are directly related, at least in part, to human activities such as the burning of fossil fuels and the deforestation of tropical forests.


Etymology

Origin of greenhouse gas

First recorded in 1980–85

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This reduces the amount of waste rotting in landfill and releasing greenhouse gases.

From BBC

Fusion, the reaction that powers the sun, has long been considered the ultimate clean-energy prize: potentially limitless electricity without greenhouse gases or radioactive waste.

From The Wall Street Journal

Coal -- a fuel that emits the highest levels of greenhouse gases -- has the largest share, followed by renewable energy, according to the IEA.

From Barron's

She became the woman who, more than perhaps any one other person, made California’s air tolerable, if not technically healthy, and revved up the state’s climate and greenhouse gas policies.

From Los Angeles Times

The climate change plan was drawn up after the Scottish government replaced its annual targets for reducing planet warming greenhouse gas emissions with five-yearly carbon budgets.

From BBC