Polar Puzzle (Now Includes August Data)

Guest Post by Werner Brozek, Edited by Just The Facts Image Credit: Ken’s Kingdom Image Credit: RSS As can be seen in the above graphs, the south polar region has been cooling for the whole satellite record. The cooling is not statistically significant, however over the complete time span of the satellite record of almost…

Problematic Adjustments And Divergences (Now Includes June Data)

Guest Post by Professor Robert Brown of Duke University and Werner Brozek, Edited by Just The Facts: Image Credit: Steven Goddard As can be seen from the graphic above, there is a strong correlation between carbon dioxide increases and adjustments to the United States Historical Climatology Network (USHCN) temperature record. And these adjustments to the surface…

Is NOAA Wrong?

Guest Post by Willis Eschenbach On another post here on Watts Up With That, a commenter pointed out that NOAA says that September 2014 was the warmest September ever on record. The commenter asked, “Is NOAA  wrong?” Sadly, as near as I can tell the answer is “Quite possibly”. Here is the NOAA graphic in question, showing their…

Who are the true denialists?

Guest essay by Professor Philip Lloyd People have the nasty habit of giving their opponents names.  Those who are convinced that humans are wrecking the world by burning fossil fuels call those who don’t believe them “denialists.” It implies that they are close to the Holocaust deniers, and so are clearly beyond the pale. I…

How long before we reach the catastrophic 2°C warming?

Guest essay by Neil Catto The other day I conducted a presentation using the UK CET, like I have on several occasions. Along with explaining it as the longest recognised instrumental record of historical temperature anywhere on Earth, it is the best record we have to understand long the past. Fig 1 Central England Mean…

If climate data were a stock, now would be the time to SELL

Using a financial markets’ trend-analyses tool to assess temporal trend-changes in global surface temperature anomalies (GSTA). Guest essay by David Dohbro Heated debates (pun intended) are currently on going regarding if the Earth’s surface temperatures continue to rise, have remained steady, or are decreasing over the past decade or so. To argue for or against…

An impartial look at global warming…

Guest essay by M.S.Hodgart (Visiting Reader Surrey Space Centre University of Surrey) The figure presented here is a new graph of the story of global warming – and cooling. The graph makes no predictions and should be used only to see what has been happening historically. The boxed points in the figure are the ‘raw…

Digital Signal Processing analysis of global temperature data time series suggests global cooling ahead

This DSP engineer is often tasked with extracting spurious signals from noisy data. He submits this interesting result of applying these techniques to the HadCRUT temperature anomaly data. Digital Signal Processing analysis suggests cooling ahead in the immediate future with no significant probability of a positive anomaly exceeding .5°C between 2023 and 2113. See figures…

Global Warming = Climate Change

Guest Essay by Ed Hoskins This short essay questions the actions to combat Global Warming / Climate Change from three points of view: The Temperature Context Man-made CO2 emissions 1965 -2012. The Significance and Influence of Carbon Dioxide CO2 The Temperature Context Mankind has thrived and developed in the last 10,000+ years, the period of…

Periodic climate oscillations

Guest essay by: Horst-Joachim Lüdecke, EIKE, Jena, Germany Alexander Hempelmann, Hamburg Observatory, Hamburg, Germany Carl Otto Weiss, Physikalisch-Technische Bundesanstalt Braunschweig, Germany In a recent paper [1] we Fourier-analyzed central-european temperature records dating back to 1780. Contrary to expectations the Fourier spectra consist of spectral lines only, indicating that the climate is dominated by periodic processes…

Temperature change in perspective

Guest post by Ed Hoskins The UK Met Office long term Central England Temperature record[1] has kept a continuous and consistent data set since the 1660s. It appears to be reliable and to have maintained its quality. It has not been adjusted as have so many other official temperature records.Although the CET record covers only…

Marcott issues a FAQ on their paper

This is from Real Climate, who played the “he who must not be named” game again in not pointing out criticisms. Gavin dissapoints. UPDATE: McIntyre responded earlier today with The Marcott Filibuster Marcott et al have posted their long-promised FAQ at realclimate here. Without providing any links to or citation of Climate Audit, they now concede:…

Boulder Escapes Global Warming

Guest post by Sam I. Outcalt Abstract: The historic record of the mean annual air temperature record at Boulder does not display the major “global” climate transitions detectable in the total annual precipitation record. Hurst ReScaling is demonstrated to be a powerful tool to examine climate change. Background: The citizens of Boulder, Colorado are extremely…