That morning the Bureau of Meteorology had put out a media...

That morning the Bureau of Meteorology had put out a media release headed “hottest
year on record” explaining that in 2013 the average annual temperature for Australia
was 1.20 degree C above the long-term average of 21.8 degree C, breaking the
previous record set in 2005 by 0.17 degree C. Such reference to changes in fractions
of a degree suggests the Bureau has very accurate temperature records

Yearbooks once published by the Bureau credited Bourke with the highest accepted
shade temperature record in Australia at 127 degrees Fahrenheit (52.8 degree
Celsius) on 16 January 1877 and after installation of the Stevenson screen in 1908,
which is the universally accepted cover for recording shade temperatures, the
highest Australian temperature reading is 125 degrees Fahrenheit recorded at
Bourke on 3 January 1909.
These are the temperatures that were recorded in the ‘Meteorological Observation’
books once kept at the Bourke post office. While these recorded temperatures may
not have been broken, they have since been scratched. Indeed they are no longer
included in the official statistics, including the statistic that declared last year to have
been the hottest year on record.

The Bureau begins with real temperature data. This data is first truncated with all
records before 1910 deleted, then some of the individual remaining record hot days
are scratched or substituted, before temperature series are submitted to a two-step
homogenization process involving the application of mathematical algorithms, before3
most of the new series for each of the ACORN-SAT locations are combined based on
an area weighting.

Through the homogenization process the Bureau have changed what was a cooling
trend in the minimum temperature of 1.0 degree C per century, into a warming trend
of 2.5 degree C per century, Figure 3. Homogenization has not resulted in some small 6
change to the data set, but rather a change in the temperature trend from one of
cooling to dramatic warming.

When Dr Jones, via our ABC, tells Australians it is getting hotter and hotter, he is
alluding to an apocalyptic vision of a global warming Armageddon. But is this real,
or just a story based on output from a computer model?
Perhaps the science of global warming has been somewhat corrupted by noble
causes?
Let us conclude with a message from Burke. Not from Bourke the often hot and dusty
town in this wide-brown land called Australia, but Burke the man. The Irishman
Edmund Burke wrote, “The only thing necessary for the triumph of evil is for good
men to do nothing.” It’s up to you to act in some way on the information we have
presented in this paper, or to do nothing. We hope you will act, because if climate
change is the greatest of moral issues, then the truth really does matter.
http://jennifermarohasy.com/wp-content/uploads/2011/08/Changing_Temperature_Data.pdf