Recent increases in global HFC‐23 emissions

@article{Montzka2010RecentII,
  title={Recent increases in global HFC‐23 emissions},
  author={Stephen A. Montzka and Lambert J. M. Kuijpers and Mark Owen Battle and Murat Aydin and Kristal R. Verhulst and E. S. Saltzman and David W. Fahey},
  journal={Geophysical Research Letters},
  year={2010},
  volume={37}
}
Firn‐air and ambient air measurements of CHF3 (HFC‐23) from three excursions to Antarctica between 2001 and 2009 are used to construct a consistent Southern Hemisphere (SH) atmospheric history. The results show atmospheric mixing ratios of HFC‐23 continuing to increase through 2008. Mean global emissions derived from this data for 2006–2008 are 13.5 ± 2 Gg/yr (200 ± 30 × 1012 gCO2‐equivalent/yr, or MtCO2‐eq./yr), ∼50% higher than the 8.7 ± 1 Gg/yr (130 ± 15 MtCO2‐eq./yr) derived for the 1990s… 

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