Forcing, feedbacks and climate sensitivity in CMIP5 coupled atmosphere‐ocean climate models

  title={Forcing, feedbacks and climate sensitivity in CMIP5 coupled atmosphere‐ocean climate models},
  author={Timothy Andrews and Jonathan M. Gregory and Mark J. Webb and Karl E. Taylor},
  journal={Geophysical Research Letters},
We quantify forcing and feedbacks across available CMIP5 coupled atmosphere‐ocean general circulation models (AOGCMs) by analysing simulations forced by an abrupt quadrupling of atmospheric carbon dioxide concentration. This is the first application of the linear forcing‐feedback regression analysis of Gregory et al. (2004) to an ensemble of AOGCMs. The range of equilibrium climate sensitivity is 2.1–4.7 K. Differences in cloud feedbacks continue to be important contributors to this range. Some… 

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