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CFC-11 expected and measured rate of change (Montzka et al. 2018)
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World 2018 0 0 0 -1.13 World 2017 0.41 0 -1.29 -1.11 World 2016 -1.51 -2.81 -1.26 -1.08 World 2015 -1.5 -2.76 -1.22 -1.05 World 2014 -1.58 -2.71 -1.18 -1.02 World 2013 -1.75 -2.65 -1.14 -1.95 World 2012 -1.84 -2.59 -1.09 -1.86 World 2011 -1.86 -2.51 -1.04 -1.86 World 2010 -1.85 -1.43 -1.0 -1.8 World 2009 -1.76 -1.35 -1.74 -1.81 World 2008 -1.82 -1.27 -1.84 -1.88 World 2007 -1.9 -1.18 -1.89 -1.9 World 2006 -1.83 -1.13 -1.87 -1.82 World 2005 -1.86 -1.07 -1.94 -1.91 World 2004 -1.89 -1.03 -1.78 -1.86 World 2003 -1.9 -1.99 -1.92 -1.87 World 2002 -1.74 -1.94 -1.7 -1.7 World 2001 -1.65 -1.89 -1.61 -1.61 World 2000 -1.63 -1.82 -1.6 -1.63 World 1999 -1.54 -1.79 0.46 0.49 World 1998 -1.68 -1.72 -1.57 -1.55 World 1997 0.4 -1.6 0.3 0.38 World 1996 0.43 0.48 0.21 0.28 World 1995 0 0.4 0.15 0.13 -
Data denotes the measured annual change in concentrations of trichlorofluoromethane (CFC-11) gas as the global average, collected via air collection and analysis automated onsite instrumentation with gas chromatography coupled with electron capture detection (GC–ECD). Data here represents the annual average for data reported in Montzka et al. (2018).
The WMO (2003; 2010 and 2014) projections are those published by the World Meteorological Organization (WMO) and represent the global average expected rate of change in CFC-11 concentrations based on reported emissions of CFC-11 from all parties to the Montreal Protocol.
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Sources
Data Published By: Montzka, S. A., Dutton, G. S., Yu, P., Ray, E., Portmann, R. W., Daniel, J. S., ... & Nance, J. D. (2018). An unexpected and persistent increase in global emissions of ozone-depleting CFC-11. Nature, 557(7705), 413.
Data publisher source:
