![]() ![]() Greenhouse gas concentrations are measured in parts per million, parts per billion, and even parts per trillion. Larger emissions of greenhouse gases lead to higher concentrations in the atmosphere. How abundant are greenhouse gases in the atmosphere?Ĭoncentration, or abundance, is the amount of a particular gas in the air. With global warming potentials (GWPs) that typically range from thousands to tens of thousands, they are sometimes referred to as high-GWP gases because, for a given amount of mass, they trap substantially more heat than CO 2.Įach gas's effect on climate change depends on three main factors: ![]() Fluorinated gases are typically emitted in smaller quantities than other greenhouse gases, but they are potent greenhouse gases. Fluorinated gases (especially hydrofluorocarbons) are sometimes used as substitutes for stratospheric ozone-depleting substances (e.g., chlorofluorocarbons, hydrochlorofluorocarbons, and halons).
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