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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.

But many experts say reducing those emissions is critical for curbing climate change, as the transportation sector is the largest source of greenhouse gas emissions in the U.S.

From Los Angeles Times

It is different to mitigation - action that reduces or limits emissions of greenhouse gases.

From BBC

Energy Information Administration shows that 83 percent of the U.S. economy still relies on fossil fuels like petroleum, coal and natural gas, all of which produce greenhouse gases when burned.

From Science Daily

It found that more than 60% of adults support goals to reduce greenhouse gas emissions and generate electricity from renewable energy sources.

From Los Angeles Times

Deploying stealth bombers and fighter jets around the clock adds a significant amount of planet-warming greenhouse gas emissions into the atmosphere.

From Barron's