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Recent and future trends in synthetic greenhouse gas radiative forcing.

Author(s) : RIGBY M., PRINN R. G., O'DOHERTY S., et al.

Type of article: Article

Summary

Atmospheric measurements show that emissions of hydrofluorocarbons (HFCs) and hydrochlorofluorocarbons are now the primary drivers of the positive growth in synthetic greenhouse gas (SGHG) radiative forcing. The authors infer recent SGHG emissions and examine the impact of future emissions scenarios, with a particular focus on proposals to reduce HFC use under the Montreal Protocol. If these proposals are implemented, overall SGHG radiative forcing could peak at around 355?mW?m-2 in 2020, before declining by approximately 26% by 2050, despite continued growth of fully fluorinated greenhouse gas emissions. Compared to “no HFC policy” projections, this amounts to a reduction in radiative forcing of between 50 and 240?mW?m-2 by 2050 or a cumulative emissions saving equivalent to 0.5 to 2.8?years of CO2 emissions at current levels. However, more complete reporting of global HFC emissions is required, as less than half of global emissions are currently accounted for.

Details

  • Original title: Recent and future trends in synthetic greenhouse gas radiative forcing.
  • Record ID : 30011576
  • Languages: English
  • Subject: Figures, economy, Environment, General information, HFCs alternatives
  • Source: Geophysical Research Letters - vol.41 - n.7
  • Publication date: 2014/04
  • DOI: http://dx.doi.org/10.1002/2013GL059099

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