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This is an accepted version of this page This is the latest accepted revision, reviewed on 9 December 2024. There are 2 pending revisions awaiting review. Gas in an atmosphere with certain absorption characteristics This article is about the physical properties of greenhouse gases. For how human activities are adding to greenhouse gases, see Greenhouse gas emissions. Greenhouse gases trap some ...
For example, if a gas has GWP of 100, two tonnes of the gas have CO 2 e of 200 tonnes, and 9 tonnes of the gas has CO 2 e of 900 tonnes. On a global scale, the warming effects of one or more greenhouse gases in the atmosphere can also be expressed as an equivalent atmospheric concentration of CO 2 .
On a per molecule basis, it is considered to be the most potent greenhouse gas present in Earth's atmosphere, having a global warming potential of about 18,000 times that of carbon dioxide. [4] The chemical is predicted to have a lifetime of 800 years in the atmosphere. [ 5 ]
A Century Aluminum plant in Kentucky vented tons of perfluorocarbons, or PFCs, which are among the most potent and longest-lasting greenhouse gases on the planet.
Natural gas is mostly methane, a greenhouse gas 80 times more effective at warming the planet than carbon dioxide. But lobbyists say it's clean.
6 is the most potent greenhouse gas. Its global warming potential of 23,900 times that of CO 2 when compared over a 100-year period. [43] Sulfur hexafluoride is inert in the troposphere and stratosphere and is extremely long-lived, with an estimated atmospheric lifetime of 800–3,200 years. [44]
Methane pound for pound is a more potent greenhouse gas that has a bigger effect ... than CO2. “When there's a pound or a metric ton of methane, we multiply by 28 because it's 28 times more ...
Methane (CH 4) in the Earth's atmosphere is a powerful greenhouse gas with a global warming potential (GWP) 84 times greater than CO 2 over a 20-year time frame. [22] [23] Methane is not as persistent as CO 2, and tails off to about 28 times greater than CO 2 over a 100-year time frame. [10]