‘Breathtaking’ temperature data adjustments increased apparent warming by 35%

‘Breathtaking’ temperature data adjustments increased apparent warming by 35%

What matters is not what [scientist Dr. Kevin] Cowtan does for a living (“the motive fallacy”) but whether or not he has got his facts right.

And according to this counterblast from Dave Burton – a US computer programmer, sea level specialist and IPCC expert reviewer on AR5 –  he hasn’t.

Burton’s key point is this: where Cowtan claims that all NOAA’s adjustments have done is increased warming by a modest 3 per cent, in actuality they have increased it by 35 per cent. So, far from Cowtan’s assessment that these adjustments are “inconsequentially tiny”, they are in fact quite massively distorting.

Might it be that they reached such wildly different conclusions by using different data? Er, no. Burton reached his conclusions by creating a spreadsheet with decadal data digitized from the exact graph used in Cowtan’s video. …

[T]he case for a fraud trial against the climate data record gatekeepers seems to be getting stronger and stronger.

Paul Homewood, the blogger who noticed the discrepancies with the Paraguay temperature records, has now turned his attention to the Arctic region. His conclusion after studying the charts before and after is that the scale and geographic range of these adjustments is “breathtaking.”

In nearly every Arctic station from Greenland in the West to Siberia in the East, the data has been adjusted to make the warm period in the 1930s look cooler than it actually was. This, of course, has the effect of making the Twentieth Century warming look much more dramatic than the raw data would suggest.

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