Obviously, Warmists will attack the messengers, rather than wonder “hey, um, why exactly are the data sets messed with?”
The fiddling with temperature data is the biggest science scandal ever
When future generations look back on the global-warming scare of the past 30 years, nothing will shock them more than the extent to which the official temperature records – on which the entire panic ultimately rested – were systematically “adjusted†to show the Earth as having warmed much more than the actual data justified.
Two weeks ago, under the headline “How we are being tricked by flawed data on global warmingâ€, I wrote about Paul Homewood, who, on his Notalotofpeopleknowthat blog, had checked the published temperature graphs for three weather stations in Paraguay against the temperatures that had originally been recorded. In each instance, the actual trend of 60 years of data had been dramatically reversed, so that a cooling trend was changed to one that showed a marked warming.
This was only the latest of many examples of a practice long recognised by expert observers around the world – one that raises an ever larger question mark over the entire official surface-temperature record.
Following my last article, Homewood checked a swathe of other South American weather stations around the original three. In each case he found the same suspicious one-way “adjustmentsâ€. First these were made by the US government’s Global Historical Climate Network (GHCN). They were then amplified by two of the main official surface records, the Goddard Institute for Space Studies (Giss) and the National Climate Data Center (NCDC), which use the warming trends to estimate temperatures across the vast regions of the Earth where no measurements are taken. Yet these are the very records on which scientists and politicians rely for their belief in “global warmingâ€.
As Christopher Booker goes on to note, Paul Homewood is looking into the Arctic, and finding lots of issues with the official data. In another post he notes information by Dave Burton which shows that adjustments have artificially increased land surface temperatures by 34.87% between 1900-2014, and
Dave Burton has taken the Cowton graph from the video, and added the narrative in green as above. Using specialised digital analysis techniques, Dave has calculated that adjustments have increased temperature trends for global land surfaces from 0.7527C/C to 1.01551C. In other words, about a quarter of the claimed global warming since 1900 is actually an artifact of adjustments.
Yes, global warming has occurred. This is the nature of the Holocene, and surely what has occurred throughout the lifespan of the Earth. Mini cooling and warming periods, which can last a couple hundred years to half a millennium or longer. Warmists want to blame this all on CO2 from Mankind, and state that warm period is somehow different from all the others, yet, a) they feel a need to change/adjust/modify/make up the data, and b) refuse to give up their own big CO2 lifestyles.
