Climate Change – How Much Global Warming Is Just Fiddled Data?

Posted on Tue 06/24/2014 by

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Bolt New 01By Andrew Bolt ~

Global Warming ExposedChristopher Booker:

Steven Goddard’s US blog Real Science [shows] how shamelessly manipulated has been one of the world’s most influential climate records, the graph of US surface temperature records published by the National Oceanic and Atmospheric Administration (NOAA).

Goddard shows how, in recent years, NOAA’s US Historical Climatology Network (USHCN) has been “adjusting” its record by replacing real temperatures with data “fabricated” by computer models. The effect of this has been to downgrade earlier temperatures and to exaggerate those from recent decades, to give the impression that the Earth has been warming up much more than is justified by the actual data. In several posts headed “Data tampering at USHCN/GISS”, Goddard compares the currently published temperature graphs with those based only on temperatures measured at the time. These show that the US has actually been cooling since the Thirties, the hottest decade on record; whereas the latest graph, nearly half of it based on “fabricated” data, shows it to have been warming at a rate equivalent to more than 3 degrees centigrade per century.

When I first began examining the global-warming scare, I found nothing more puzzling than the way officially approved scientists kept on being shown to have finagled their data, as in that ludicrous “hockey stick” graph, pretending to prove that the world had suddenly become much hotter than at any time in 1,000 years. Any theory needing to rely so consistently on fudging the evidence, I concluded, must be looked on not as science at all, but as simply a rather alarming case study in the aberrations of group psychology.

Steven Goddard:

Prior to the year 2000, NASA showed US temperatures cooling since the 1930?s, and 1934 much warmer than 1998…

Right after the year 2000, NASA and NOAA dramatically altered US climate history, making the past much colder and the present much warmer. The [graphs] below shows how NASA cooled 1934 and warmed 1998, to make 1998 the hottest year in US history instead of 1934. This alteration turned a long term cooling trend since 1930 into a warming trend.

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Steven Goddard again:

I’ve shown how NASA and NOAA have dramatically altered the US temperature record, and they are doing the same thing in other countries, like Iceland and Australia – almost always cooling the past, which creates the appearance of warming.

Jennifer Marohasy:

I’ve since come to understand that the annual average temperature for 2013, which the Bureau claimed was a record, is in fact a wholly contrived valued based on modeling of temperatures, rather than the averaging of actual recorded values. That is, careful scrutiny of the Bureau’s methodology shows that recorded temperatures at locations across Australia are submitted to a two-step homogenization process that can have the effect of changing the entire temperature trend at specific locations. A weighted mean of these ‘homogenized’ values is then used in the calculation of the Australian annual mean temperature. In turn, the ‘homogenized’ values are used by the Intergovernmental Panel on Climate Change (IPCC), which gives advice back to the Australian government on global and Australian temperature trends…

As part of ongoing research into natural rainfall patterns in Queensland, Professor John Abbot and I have been studying the temperature record for northeastern Australia, as temperature is a key input variable in our neural network models (e.g. Abbot and Marohasy 2014). Considering the data from the late 1800s until 1960, a cooling trend is evident, followed by warming between 1960 and 2001. In contrast, the last 12 years show quite dramatic cooling, Table 1. All three periods have occurred while greenhouse gases, particularly carbon dioxide, have been increasing in concentration in the atmosphere.

Our analysis of the maximum temperature trend for the years 2002 to 2013 is based, not on the modeled temperature values used to generate official temperature statistics, but on the unadjusted observed temperatures also available from the Bureau of Meteorology website. The thirty-one sites across Queensland were chosen on the basis that there is a continual temperature record for the period 2002 to 2013 at each of the locations. We choose 2002 as the start date, as the data suggests a change in trend at about this year from warming to cooling. This is consistent with published studies by astrophysicists and physicists (e.g. Nicola Scafetta 2010, Abdussamatov 2012, and Lu 2013) and closely follows the timing of the last solar maximum (eg. NASA update 02/05/2014, http://solarscience.msfc.nasa.gov/predict.shtml). While Table 1 is limited to Queensland, preliminary assessment of data from NSW, Victoria and the Northern Territory also suggests the onset of a cooling trend.

This information is in stark contrast to the information in the State of the Climate Report 2014 recently published by the Bureau and also CSIRO. The report states that “warming over Australia has been consistent” and temperatures are “projected to continue to increase, with more hot days and fewer extremely cool days.”

Jennifer Marohasy again:

The most extreme example that Ken found of data corruption was at Amberley, near Brisbane, Queensland, where a cooling minima trend was effectively reversed, Figure 1.”

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Andrew Bolt is a journalist and columnist writing for The Herald Sun in Melbourne Victoria Australia.

Andrew Bolt’s columns appear in Melbourne’s Herald Sun, Sydney’s Daily Telegraph and Adelaide’s Advertiser. He runs the most-read political blog in Australia and hosts Channel 10’s The Bolt Report each Sunday at 10am. He is also heard from Monday to Friday at 8am on the breakfast show of radio station MTR 1377, and his book  Still Not Sorry remains very widely read.

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