News that doesn't receive the necessary attention.

Sunday, September 15, 2013

Climate models overestimated global warming for past 20 yrs., also missed ongoing global warming hiatus-Nature Climate Change

9/13/13, "This Week’s Climate Embarrassment," Powerline blog, Steven Hayward 
 
"With two weeks to go until the slow rollout of the next IPCC climate science report begins, there’s a fresh embarrassment for the climateers from right inside their own camp: a Nature Climate Change article entitled “Overestimated global warming over the past 20 years.”

The article is dry and dusty in the usual way, but there’s no understating the devastating effects of certain passages like this:

"The evidence, therefore, indicates that the current generation of climate models (when run as a group) do not reproduce the observed global warming over the past 20 years, or the slowdown in global warming over the past fifteen years"...

In other words, the “current generation of climate models” is crap.  The authors offer some explanations of why this glaring anomaly could be consistent with the general warmist hypothesis, but ultimately repair to the “wait and see—we’ll still be right” argument.

It is going to be very interesting to see how the IPCC report handles this problem in its forthcoming report." via Tom Nelson

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Sept. 2013, "Overestimated global warming over the past 20 years," Nature Climate Change, commentary, John C. Fyfe, Nathan P. Gillett and Francis W. Zwiers.

"Recent observed global warming is significantly less than that simulated by climate models. This difference might be explained by some combination of errors in external forcing, model response and internal climate variability."





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