Failed Math: In 1997, NOAA claimed that the Earth was 3.83 degrees warmer than today

Steve McIntyre always told us to “watch the pea under the thimble” when it comes to climate change pronouncements, this is one of those cases. Yesterday, to much media fanfare, wailing, and gnashing of teeth NOAA pronounced that 2015 was the hottest year on record, ever! There’s only one problem with that…the Internet never forgets. Back…

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Is NOAA About to Crack? 'Pausebuster' study under intense scrutiny

Guest essay by Eric Worrall According to House Science Committee Chairman Lamar Smith (R-Tex.), who is leading a Congressional investigation into the infamous Karl et al 2015 “Pausebuster” study, NOAA whistleblowers have come forward, with information which cast doubt on the scientific integrity of NOAA’s global temperature reconstructions. According to the Washington Post; Smith told…

NOAA/NCDC's new 'pause-buster' paper: a laughable attempt to create warming by adjusting past data

Did SNL’s Tommy Flanagan Oversee the New Surface Temperature Data? By Bob Tisdale and Anthony Watts, commentary from Dr. Judith Curry follows There is a new paper published the journal Science about the recent slowdown in global surface warming (released from embargo today at 2PM eastern).  It is from Tom Karl and others at NOAA’s newly…

Can Temperature Adjustments Right a Wrong?

Guest Post by John Goetz Adjustments to temperature data continue to receive attention in the mainstream media and science blogs. Zeke Hausfather wrote an instructive post on the Climate Etc. blog last month explaining the rationale behind the Time of Observation (TOBS) adjustment. Mr. Hausfather pointed to the U.S. Climate Reference Network (CRN) as a…

On the Elusive Absolute Global Mean Surface Temperature – A Model-Data Comparison

Guest Post by Bob Tisdale With the publication of the IPCC 5th Synthesis Report, I thought there might be some interest in a presentation of how well (actually poorly) climate models simulate global mean surface temperatures in absolute terms. That is, most climate model outputs are presented in terms of anomalies, with data shown as…

September 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

Guest Post by Bob Tisdale This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through September 2014 and HADCRUT4 and NCDC through August 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS and UAH) through September 2014. The three surface data suppliers…

August 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

Guest Post by Bob Tisdale This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through August 2014 and HADCRUT4 and NCDC through July 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS and UAH) through August 2014. Initial Notes: GISS LOTI, and…

July 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through July 2014 and HADCRUT4 and NCDC through June 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS and UAH) through July 2014. The map to the above right shows the July 2014…