File:Trends in global mean surface temperature 1993-2012.jpg

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English: Trends in global mean surface temperature[1]

Caption: a, 1993–2012. b, 1998–2012. Histograms of observed trends (red hatching) are from 100 reconstructions of the HadCRUT4 dataset 1. Histograms of model trends (grey bars) are based on 117 simulations of the models, and black curves are smoothed versions of the model trends. The ranges of observed trends reflect observational uncertainty, whereas the ranges of model trends reflect forcing uncertainty, as well as differences in individual model responses to external forcings and uncertainty arising from internal climate variability.

  1. John C. Fyfe, Nathan P. Gillett & Francis W. Zwiers (2013-08-28). "Overestimated global warming over the past 20 years". Nature Climate Change 3 (9): 767-769. Nature. DOI:10.1038/nclimate1972. Retrieved on 2014-03-01.
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Source Trends in global mean surface temperature
Author John C. Fyfe, Nathan P. Gillett, Francis W. Zwiers
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1 March 2014

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