18 Aug 2019

Where Do They Put the Thermometer, When They Measure the Temperature of the Earth?

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Fort Morgan, Colorado US Historical Climate Network Station. It is easy to see how urbanization can impact recorded temperature data.

Issues & Insights identifies the key flaw in the Alarmist narrative.

The United Nation’s Intergovernmental Panel on Climate Change is quite certain Earth will be in trouble if the global temperature exceeds pre-industrial levels by 1.5 degrees Celsius or more. But how can anyone know? According to university research, “global temperature” is a meaningless concept.

“Discussions on global warming often refer to ‘global temperature.’ Yet the concept is thermodynamically as well as mathematically an impossibility,” says Science Daily, paraphrasing Bjarne Andresen, a professor at the University of Copenhagen’s Niels Bohr Institute, one of three authors of a paper questioning the “validity of a ‘global temperature.’”

Science Daily explains how the “global temperature” is determined.

“The temperature obtained by collecting measurements of air temperatures at a large number of measuring stations around the globe, weighing them according to the area they represent, and then calculating the yearly average according to the usual method of adding all values and dividing by the number of points.”

But a “temperature can be defined only for a homogeneous system,” says Andresen. The climate is not regulated by a single temperature. Instead, “differences of temperatures drive the processes and create the storms, sea currents, thunder, etc. which make up the climate”.

While it’s “possible to treat temperature statistically locally,” says Science Daily, “it is meaningless to talk about a global temperature for Earth. The globe consists of a huge number of components which one cannot just add up and average. That would correspond to calculating the average phone number in the phone book. That is meaningless.”

There are two ways to measure temperature: geometrically and mathematically. They can produce a large enough difference to show a four-degree gap, which is sufficient to drive “all the thermodynamic processes which create storms, thunder, sea currents, etc.,” according to Science Daily.

So if global temperature is unknowable, how can the IPCC and the entire industry of alarmists and activists be so sure there exists a threshold we cannot pass? Of course the IPCC says it knows the unknowable. In its latest report, released this month, it yet again maintained that the global temperature must “kept to well below 2ºC, if not 1.5oC” above pre-industrial levels to avoid disaster.

A few years after the University of Copenhagen report was published, University of Guelph economist Ross McKitrick, one of the report’s authors, noted in another paper that “number of weather stations providing data . . . plunged in 1990 and again in 2005. The sample size has fallen by over 75% from its peak in the early 1970s, and is now smaller than at any time since 1919.”

“There are serious quality problems in the surface temperature data sets that call into question whether the global temperature history, especially over land, can be considered both continuous and precise. Users should be aware of these limitations, especially in policy-sensitive applications.”

RTWT

HT: Mark Tapscott.

Statistics! “There are three kinds of falsehoods, lies, damned lies, and statistics.” –Arthur Balfour.

“If I get to select both the data and the methodology of calculation, I can prove anything with statistics.” –David Zincavage.

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3 Feedbacks on "Where Do They Put the Thermometer, When They Measure the Temperature of the Earth?"

Schill McGuffin

It’s hard to imagine why any legitimate reason for the number of recording stations to have plunged in the modern, networked, cheap-tech era. My suspicion is, at best, a tendency toward centralizing control due to the impulse to hoard research funding, or, at worst, active “cherry picking” of data to produce the desired results.



Surellin

I stopped looking at the whole climate business in 2014, after it was abundantly plain that, after 16 years without “global temp” rises, there was no discernible correlation between CO2 and temps. So I just went back to check out the global ice budget and what it is doing these days. Says here that the Greenland ice sheet is melting at a rate to cause about 2/3mm rise in sea level/yr. But the Antarctic ice sheet is accumulating to cause a 6-7mm LOWERING of sea level per year. ( http://www.antarcticglaciers.org/glaciers-and-climate/what-is-the-global-volume-of-land-ice-and-how-is-it-changing/). How could anyone imagine that this poor world has survived all these millions of years without very substantial negative feedback loops to keep us golden?



Robin Beehe

“Fort Morgan, Colorado US Historical Climate Network Station.”…Not only the heat from the AC’s but that brick building will radiate heat for about 8 hours after the sun goes down. Not scientific.



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