Increase in HFC-134a emissions in response to the success of the Montreal Protocol

Journal Article
Increase in HFC-134a emissions in response to the success of the Montreal Protocol
Fortems-Cheiney, A., M. Saunois, I. Pison, F. Chevallier, P. Bousquet, C. Cressot, S. Montzka, P. Fraser, M. Vollmer, P. Simmonds, D. Young, S. O'Doherty, R. Weiss, F. Artuso, B. Barletta, D. Blake, S. Li, C. Lunder, B. Miller, S.-Y. Park, R. Prinn, T. Saito, L. Steele and Y. Yokouchi (2015)
Journal of Geophysical Research: Atmospheres, 120: 11728–11742 (doi:10.1002/2015JD023741)

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Abstract/Summary:

The 1,1,1,2-tetrafluoroethane (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 potential greenhouse 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 global HFC-134a emissions from 19 ± 2 Gg/yr in 1995 to 167 ± 5 Gg/yr in 2010, with both a slowdown in developed countries 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.

Citation:

Fortems-Cheiney, A., M. Saunois, I. Pison, F. Chevallier, P. Bousquet, C. Cressot, S. Montzka, P. Fraser, M. Vollmer, P. Simmonds, D. Young, S. O'Doherty, R. Weiss, F. Artuso, B. Barletta, D. Blake, S. Li, C. Lunder, B. Miller, S.-Y. Park, R. Prinn, T. Saito, L. Steele and Y. Yokouchi (2015): Increase in HFC-134a emissions in response to the success of the Montreal Protocol. Journal of Geophysical Research: Atmospheres, 120: 11728–11742 (doi:10.1002/2015JD023741) (http://onlinelibrary.wiley.com/doi/10.1002/2015JD023741/full)
  • Journal Article
Increase in HFC-134a emissions in response to the success of the Montreal Protocol

Fortems-Cheiney, A., M. Saunois, I. Pison, F. Chevallier, P. Bousquet, C. Cressot, S. Montzka, P. Fraser, M. Vollmer, P. Simmonds, D. Young, S. O'Doherty, R. Weiss, F. Artuso, B. Barletta, D. Blake, S. Li, C. Lunder, B. Miller, S.-Y. Park, R. Prinn, T. Saito, L. Steele and Y. Yokouchi

Journal of Geophysical Research: Atmospheres
120: 11728–11742 (doi:10.1002/2015JD023741)

Abstract/Summary: 

The 1,1,1,2-tetrafluoroethane (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 potential greenhouse 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 global HFC-134a emissions from 19 ± 2 Gg/yr in 1995 to 167 ± 5 Gg/yr in 2010, with both a slowdown in developed countries 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.

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