More Doubts About Global Warming

Friday's Wall Street Journal printed an editorial by Patrick Michaels, a professor of environmental sciences at UVA, and a senior fellow at the Cato Institute, entitled "Our Climate Numbers Are a Big Old Mess."

Essentially, Michaels convincingly argues that the UN' Intergovernmental Panel on Climate Change (IPCC) has been restating climate data fast and furiously, the better to provide further, more dramatic appearance of a recent global warming trend.

As Michaels writes in the editorial,

"The earth's paltry warming trend, 0.31 degrees Fahrenheit per decade since the mid-1970s, isn't enough to scare people into poverty. And even that 0.31 degree figure is suspect.
For years, records from surface thermometers showed a global warming trend beginning in the late 1970s. But temperatures sensed by satellites and weather balloons displayed no concurrent warming.

These records have been revised a number of times, and I examined the two major revisions of these three records. They are the surface record from the United Nations' Intergovernmental Panel on Climate Change (IPCC), the satellite-sensed temperatures originally published by University of Alabama's John Christy, and the weather-balloon records originally published by James Angell of the U.S. Commerce Department.

The two revisions of the IPCC surface record each successively lowered temperatures in the 1950s and the 1960s. The result? Obviously more warming – from largely the same data."

So we see the beginning of a trend at the IPCC- scrub, restate and selectively omit prior data in order to result in one-way temperature change estimates. Always higher.

Michaels continues,

"The balloon temperatures got a similar treatment. While these originally showed no warming since the late 1970s, inclusion of all the data beginning in 1958 resulted in a slight warming trend. In 2003, some tropical balloon data, largely from poor countries, were removed because their records seemed to vary too much from year to year. This change also resulted in an increased warming trend. Another check for quality control in 2005 created further warming, doubling the initial overall rate.

Then it was discovered that our orbiting satellites have a few faults. The sensors don't last very long and are continually being supplanted by replacement orbiters. The instruments are calibrated against each other, so if one is off, so is the whole record. Frank Wentz, a consulting atmospheric scientist from California, discovered that the satellites also drift a bit in their orbits, which induces additional bias in their readings. The net result? A warming trend appears where before there was none.

There have been six major revisions in the warming figures in recent years, all in the same direction. So it's like flipping a coin six times and getting tails each time. The chance of that occurring is 0.016, or less than one in 50. That doesn't mean that these revisions are all hooey, but the probability that they would all go in one direction on the merits is pretty darned small."

Michaels' last point is pretty compelling. The chance that all corrections to a data series, ex post, would be in one direction, is pretty unlikely. This begs the question that more than random 'restatements' are occurring. There's almost certainly an agenda to get those temperatures rising faster in recent years.

Upon looking into the actual conditions of some of the sources of the alleged 'errors' found by the IPCC, Michaels writes,

"The removal of weather-balloon data because poor nations don't do a good job of minding their weather instruments deserves more investigation, which is precisely what University of Guelph economist Ross McKitrick and I did. Last year we published our results in the Journal of Geophysical Research, showing that "non-climatic" effects in land-surface temperatures – GDP per capita, among other things – exert a significant influence on the data. For example, weather stations are supposed to be a standard white color. If they darken from lack of maintenance, temperatures read higher than they actually are. After adjusting for such effects, as much as half of the warming in the U.N.'s land-based record vanishes. Because about 70% of earth's surface is water, this could mean a reduction of as much as 15% in the global warming trend.

Another interesting thing happens to the U.N.'s data when it's adjusted for the non-climatic factors. The frequency of very warm months is lowered, to the point at which it matches the satellite data, which show fewer very hot months. That's a pretty good sign that there are fundamental problems with the surface temperature history. At any rate, our findings have not been incorporated into the IPCC's history, and they probably never will be."

So Michaels reports that, when actual conditions of the data sources are investigated, and adjustments made, much of the putative warming trends in restated data simple vanish. But you won't be seeing those results in further IPCC publications.

However, perhaps the most ludicrous finding by Michaels comes at the close of his piece. He writes of the alleged warming of Greenland,

"The fear of a sudden loss of ice from Greenland also makes a lot of news. A year ago, radio and television were ablaze with the discovery of "Warming Island," a piece of land thought to be part of Greenland. But when the ice receded in the last few years, it turned out that there was open water. Hence Warming Island, which some said hadn't been uncovered for thousands of years. CNN, ABC and the BBC made field trips to the island.

Warming Island has a very distinctive shape, and it lies off of Carlsbad Fjord, in eastern Greenland. My colleague Chip Knappenberger found an inconvenient book, "Arctic Riviera," published in 1957 (near the end of the previous warm period) by aerial photographer Ernst Hofer. Hofer did reconnaissance for expeditions and was surprised by how pleasant the summers had become. There's a map in his book: It shows Warming Island.

The mechanism for the Greenland disaster is that summer warming creates rivers, called moulins, that descend into the ice cap, lubricating a rapid collapse and raising sea levels by 20 feet in the next 90 years. In Al Gore's book, "An Inconvenient Truth," there's a wonderful picture of a moulin on page 193, with the text stating "These photographs from Greenland illustrate some of the dramatic changes now happening on the ice there."

Really? There's a photograph in the journal "Arctic," published in 1953 by R.H. Katz, captioned "River disappearing in 40-foot deep gorge," on Greenland's Adolf Hoels Glacier. It's all there in the open literature, but apparently that's too inconvenient to bring up. Greenland didn't shed its ice then. There was no acceleration of the rise in sea level."

So we see that our modern media, with little appreciation for history, is mistaking natural climate cycles, and their effects on, for instance, Greenland, with allegedly heretofore unexperienced effects of recent warming.

Michaels' final story is about the discovery of ancient trees in the Arctic tundra, noting,

"Back then, the forest extended all the way to the Arctic Ocean, which is now completely surrounded by tundra. If it was warmer for such a long period, why didn't Greenland shed its ice?"

He concludes his editorial with these sentiments,

"This prompts the ultimate question: Why is the news on global warming always bad? Perhaps because there's little incentive to look at things the other way. If you do, you're liable to be pilloried by your colleagues. If global warming isn't such a threat, who needs all that funding? Who needs the army of policy wonks crawling around the world with bold plans to stop climate change?

But as we face the threat of massive energy taxes – raised by perceptions of increasing rates of warming and the sudden loss of Greenland's ice – we should be talking about reality."

Once again, we see human behavior at work in the global warming issue. But not spewing more carbon. Rather, altering data to insure that the many politically-correct people now being lavishly paid to study 'global warming' and its effects continue to have employment- no matter what the truth of the matter.