Greenhouse Gas
GREEN-hows GAS
/ˈɡriːnhaʊs ɡæs/
A gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect.
Key examples include carbon dioxide, methane, nitrous oxide, and fluorinated gases.
The story behind the word. The term 'Greenhouse Gas' is a descriptive compound. The 'greenhouse effect' was first described by Joseph Fourier in 1824, comparing Earth's atmosphere to a greenhouse that traps heat. The specific phrase 'greenhouse gas' became common in the 20th century as scientists identified the atmospheric gases responsible for this warming phenomenon, primarily carbon dioxide, methane, and others.
Word relationships
- GHG: An acronym commonly used in scientific and policy contexts for 'Greenhouse Gas'.
Collocations
- emissions of greenhouse gas
- reduce greenhouse gas
- major greenhouse gas
- atmospheric greenhouse gas
Example sentences
- "The burning of fossil fuels releases significant amounts of greenhouse gas into the atmosphere." Discussing the causes of climate change.
- "International agreements aim to reduce emissions of potent greenhouse gases." Reporting on environmental regulations.
Memory hook
Think of a 'GREENHOUSE' that traps heat, and these 'GASES' do the same for Earth's atmosphere. Heat-Trapping Gas
When not to use
Avoid using it for gases that do not contribute to the warming of the atmosphere.
Fun facts
- Water vapor is the most abundant greenhouse gas, but human activities have a more direct impact on other, longer-lived greenhouse gases.
- The 'greenhouse effect' is a natural process essential for life on Earth; without it, the planet would be too cold to support life. The problem arises from an enhanced greenhouse effect due to human emissions.
Related words
Explore more words
mitigation, emission, footprint, geothermal, solar, photosynthesis
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