Comparing GHCN V1 and V3

Much Ado About Very Little Guest post by Zeke Hausfather and Steve Mosher E.M. Smith has claimed (see full post here: Summary Report on v1 vs v3 GHCN ) to find numerous differences between GHCN version 1 and version 3, differences that, in his words, constitute “a degree of shift of the input data of…

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Roy Spencer's ISH population adjusted discoveries

Readers recall that I carried a guest post from Dr. Roy Spencer on what he learned from analysing the CRUTem3 data: Spencer shows compelling evidence of UHI in CRUTem3 data. Now he has turned his attention to what I consider a better data set – the ISH data set, and comparing it to CRUTemp3 the…

Another GISS miss: warming in the Arctic – the adjustments are key

GHCN Temperature Adjustments Affect 40% Of The Arctic By Paul Homewood                          Before                                                           After There has been much discussion recently about temperature adjustments made by GHCN in Iceland and Greenland, which have had the effect of reducing historic temperature levels, thereby creating an artificial warming trend. These can easily be checked at the GISS website, where…

Another GISS miss, this time in Iceland

Ever wonder why NASA’s Jim Hansen (and many others) see red at high northern latitudes? Above 2011 Temperature Anomaly. Source: NASA GISS interactive plotter With all that red up north, you’d think Jimbo, Gore, and Trenberth would want to get a look at that firsthand, instead of making a fossil fueled boat trip to Antarctica…

Abrupt changes in GHCN station-level temperature records contradict the anthropogenic global warming (AGW) claims.

Guest post by Jens Raunsø Jensen Preamble Inspired by a statement by Dr. Kevin Trenberth in the e-mails referred to as Climategate 2.0 (#3946 discussed here), it is hoped that climate scientists will have “an open enough mind to even consider” that the global warming of the 20th century could have occurred mainly as abrupt…

Note to Tamino: Cherries are not the only fruit

Guest post by Verity Jones A Tamino rant aimed at Joe D’Aleo’s Arctic ice refreezing after falling short of 2007 record (also at ICECAP) has had me smiling.  Tamino’s accusation against Joe of cherry picking are centred on one of the graphs originally posted here at DITC. “D’Aleo tries so hard to blame Arctic climate change…