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Increase in HFC-134a emissions in response to the success of the Montreal Protocol
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2015
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Source: Journal of Geophysical Research: Atmospheres, 120(22), 11,728-11,742
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Journal Title:Journal of Geophysical Research: Atmospheres
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Description:The 1,1,1,2-tetra fluoroethane (HFC-134a), an important alternative to CFC-12 in accordance with the Montreal Protocol on Substances that Deplete the Ozone Layer, is a high global warming potentialgreenhouse gas. Here we evaluate variations in global and regional HFC-134a emissions and emission trends, from 1995 to 2010, at a relatively high spatial and temporal (3.75° in longitude × 2.5° in latitude and 8 day) resolution, using surface HFC-134a measurements. Our results show a progressive increase of globalHFC-134a emissions from 19 ± 2 Gg/yr in 1995 to 167 ± 5 Gg/yr in 2010, with both a slowdown in developedcountries and a 20%/yr increase in China since 2005. A seasonal cycle is also seen since 2002, which becomes enhanced over time, with larger values during the boreal summer. 1. Introduction As a consequence of the Montreal Protocol and its amendments, hydro fluorocarbons (HFCs) have been intro-
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Source:Journal of Geophysical Research: Atmospheres, 120(22), 11,728-11,742
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ISSN:2169-897X
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Rights Information:Other
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Compliance:Library
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