Comparing Temperature Data Sets

In light of Anthony Watts’ latest idiocy comparing GISS and UAH temperature data without bothering to put them on the same scale, I thought it might be interesting to compare different temperature records … but let’s do it right, eh?

Odd Man Out

In a recent post Anthony Watts highlights the difference between the GISS global temperature for Nov.2010 and that from UAH (i.e., the UAH TLT or lower-troposphere temperature), saying:

Hide the Incline with the “Rank Trick”

or, Hey David Whitehouse — why is the sky orange?

It seems that David Whitehouse still doesn’t understand basic statistics. I mean the really basic stuff.

Blowin’ in the Wind

Anthony Watts posted about how Steve Goddard’s prediction for the summer minimum in sea ice extent was pretty good.

All that data

This post is especially for those who aren’t sure whether global warming is real or not, whether it’s man-made or not, whether it’s dangerous or not. Let me tell you what made up my mind.

Readers may recall that not too long ago, I personally analyzed all the data in the entire GHCN (global historical climate network). I did this because Anthony Watts and Joe D’Aleo published a document claiming that the GHCN data, and the way it was processed, exaggerated estimates of how much the globe has warmed over the last century or more. They even claimed that the scientists who managed, and who processed, these data had deliberately manipulated both the data (by selectively removing or retaining data locations) and the analysis (by their methods of applying “adjustments”) to exaggerate the warming trend.

A Good Read

Just a note: Climatesight has an excellent post about the real meaning of “climategate”.

Oreskes Rules

There’s an interview with Naomi Oreskes by the Australian Broadcasting Corp. which is well worth hearing. It’s only a little over ten minutes, but it just might be a “must hear.”

Vox Populi

Readers here tend to be pretty knowledgeable about climate science, and about science in general. Perhaps we should remember that many people — including some among the strongest supporters of action to reduce greenhouse gas emissions — are not so knowledgeable.

Much Ado About Something

A reader recently asked my opinion about this post at Skeptical Science, which is a comment on Ambaum 2010, Significance Tests in Climate Science, J. Climate, doi: 10.1175/2010JCLI3746.1.

Hey David Whitehouse: why is the sky green?

Let me respond. Answer: It isn’t.

Now let me respond to Whitehouse’s recent post at WUWT. He asks, “Why is the temperature unchanging?” Answer: It isn’t.