Category Archives: statistics

Solar Cycle Driven Ocean Temperature Variations

What Slow Fourier Transforms can tell us. Guest essay by Stan Robertson, Ph.D., P.E. On May 3, 2014, an article on WUWT by Willis Eschenbach entitled, The Slow Fourier Transform (SFT) was posted. As he noted, the amplitude of the … Continue reading

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Posted in Radiation, Solar, statistics | 210 Comments

Standard Deviation, The Overlooked But Essential Climate Statistic

Guest essay by Dr Tim Ball Never try to walk across a river just because it has an average depth of four feet. Martin Friedman “Statistics: The only science that enables different experts using the same figures to draw different … Continue reading

Posted in statistics | 118 Comments

Statistical flaws in science: p-values and false positives

To make science better, watch out for statistical flaws by Tom Siegfried First of two parts As Winston Churchill once said about democracy, it’s the worst form of government, except for all the others. Science is like that. As commonly … Continue reading

Posted in Science, statistics | 114 Comments

Lewandowsky – call your office: Correlation is Meaningless

Readers may recall this survey: A poll to test the Lewandowsky methodology The results are in, which is why we can’t say global warming proponents support pedophilia. Guest essay by Brandon Schollenberger They don’t. The fact there is a correlation (0.14) … Continue reading

Posted in Opinion, statistics, Stephan Lewandowsky | 107 Comments

Warmists Are Never Wrong, Even When Supporting Genocide

Guest essay by Brandon Shollenberger Global warming proponents support genocide. That may seem hard to believe, but remember, they’ve said it’d be right to blow up dams and burn cities to the ground: Unloading essentially means the removal of an … Continue reading

Posted in Alarmism, Curious things, Opinion, statistics, Stephan Lewandowsky | 142 Comments

Raising the bar on statistical significance

I was searching the early edition of PNAS for the abstract of yet another sloppy “science by press release” that didn’t bother to give the the title of the paper or the DOI, and came across this paper, so it … Continue reading

Posted in statistics | Tagged , , , , , , | 219 Comments

Detecting the AGW Needle in the SST Haystack

Guest essay by Jeffery S. Patterson My last post on this site, examined the hypothesis that the climate is dominated by natural, harmonically related periodicities. As they say in the business, the critics were not kind. Some of the criticisms … Continue reading

Posted in Sea Surface Temperature, statistics | Tagged , , , , | 125 Comments

Chiefio Smith examines GHCN and finds it “not fit for purpose”

E.M. Smith over at the blog Musings from the Chiefio earlier this month posted an analysis comparing versions 1 and 3 of the GHCN (Global Historical Climate Network) data set.  WUWT readers may remember a discussion about GHCN version 3 … Continue reading

Posted in Climate sensitivity, Climate_change, GHCN, Global warming, statistics | 120 Comments

An Ocean of Overconfidence

Guest Post by Willis Eschenbach I previously discussed the question of error bars in oceanic heat content measurements in “Decimals of Precision“. There’s a new study of changes in oceanic heat content, by Levitus et al., called “World Ocean Heat … Continue reading

Posted in ARGO data, Oceans, statistics | Tagged , , , | 135 Comments

Tipping points and beliefs – the 10% solution

From the Rennsselaer Polytechnic Institute Minority Rules: Scientists Discover Tipping Point for the Spread of Ideas Scientists at Rensselaer Polytechnic Institute have found that when just 10 percent of the population holds an unshakable belief, their belief will always be … Continue reading

Posted in Opinion, statistics | Tagged , , | 119 Comments

Warming or Cooling? Heads or Tails?

At left, Two Headed Quarter from This article, originally published in the Wall Street Journal, is now republished here, with the author’s permission, using his website post. Mathematician Doug Keenan (in so many words) rhetorically asks the question: “Are … Continue reading

Posted in Climate News, Opinion, statistics | Tagged , , , , , | 60 Comments