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I did a quick analysis using a random effects model to calculate monthly “anomalies” as a residual allowing separate random effects for month(MO), deck (DCK) and country (C1) using the lme4 package as follows...

The ecotard media – led, naturally enough, by the Guardian – has been making great play of “Skeptical Environmentalist” Bjorn Lomborg’s apparent Damascene conversion...

For quite a while, I’ve urged people interested in gridded temperatures to really look at the SST data – realdata not adjusted data. SST makes up 2/3 of the record, but temperature critics spend 99.99% of their...

Got back from the annual WFS conference at Erice, Sicily a couple of days ago. It is an interdisciplinary conference on world issues, in which climate is only a part, but an important part. As in previous visits, it was a...

Over the weekend (before I picked up my “regular” files), I started looking at Steve Mosher’s use of raster and zoo – both of which intrigue me a great deal, but got intrigued by something else and...

Guest Post by Willis Eschenbach Anthony has highlighted a study by Coughlin and Butler. Their study says that there is little or no urban warming (urban heat island, or UHI) in the temperature record from the Armagh Observatory...

Geoff Sherrington and others on the First Difference Method post have requested a post for discussing Kriging. I am new to Kriging myself, so please correct me if I make any errors here. Steve McIntyre (who may be on the...

Guest Post by Willis Eschenbach In “Another day, overshot to hell” Anthony Watts commented on the “Overshoot Day” promoted by Mathis Wackernagel and the Global Footprint Network (GFN)...

Foreword: The focus of this essay is strictly altitude placement/change of GHCN stations. While challenge and debate of the topic is encouraged, please don’t let the discussion drift into other side issues. As noted...

Over on WUWT (http://wattsupwiththat.com/2010/07/13/calculating-global-temperature/), Zeke Hausfarther and Steven Mosher have been discussing the calculation of global temperature from station data. They list several methods...

Guest Post by Willis Eschenbach Anthony has posted here on a new paper co-authored by Judith Curry of Georgia Tech, entitled “Accelerated warming of the Southern Ocean and its impacts on the hydrological cycle and sea...

I’m off to Sicily tonight for the 2010 conference of the World Federation of Scientists, hosted by the redoubtable Antonio Zichichi. I’ll be a bit spotty checking in. I never did finish reporting on the 2009 conference...

As usual, a good analysis from Matt Briggs here

By Steve Goddard CRU Temperature Anomalies Yesterday, the Guardian reported : Meteorologists have developed remarkably effective techniques for predicting global climate changes caused by greenhouse gases...

Guest Post by Willis Eschenbach When people say that we understand the unbelievably complex climate system well enough to project scenarios out a hundred years, I point out that new things are being discovered every week...