JoNova

A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).


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Think it has been debunked? See here.

The Skeptics Handbook II

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#DataGate: Hadley reply to first audit with foggy excuses about problems 2,000 staff didn’t find

Last week we exposed absurd errors, brutal adjustments and an almost complete lack of quality control (was there any at all?) in the key HadCRUT4 data. The IPCC’s favorite set is maintained (I’m feeling generous) by the Met Office Hadley Centre and the Uni of East Anglia’s CRU in the UK.

Finally the Hadley Met Centre team have replied to Graham Lloyd regarding John McLean’s audit. They don’t confirm or discount any of his new claims specifically. But they acknowledge his previous notifications were useful in 2016, and promise “any errors will be fixed in the next update.” That’s nice to know, but begs the question of why a PhD student working from home can find mistakes that the £226 million institute with 2,100 employees could not.

They don’t mention the killer issue of the adjustments for site-moves at all — that’s the cumulative cooling of the oldest records to compensate for buildings that probably weren’t built there ’til decades later.

Otherwise this is the usual PR fog — a few outliers don’t change the trend, the world is warming, and other datasets show “similar trends“. The elephant in the kitchen is the site move adjustments which do [...]

Man-made adjustments transform cooling to warming in Paraguay, South America

It’s not fossil fuels causing global warming, it’s man-made adjustments. Stop the adjustments!

In South America, there are hardly any rural land thermometers. GISS tells us the area is warming (see the map below). Paul Homewood looked at the raw data. There are only three rural stations currently operating in the area, Puerto Casado, Mariscal, and San Juan, and they all show a raw trend that falls. As in so many other situations, after adjustments, all three show a rising trend. The changes are breathtaking. In Mariscal raw temperatures of 25.5C turned out to be “really” 22.5C. (Those 1950 thermometers were hopeless ). In San Juan Bautista, and Puerto Casasdo the  old thermometers get adjusted down by around two degrees. Perhaps there are reasons for the adjustments, but if old thermometers so so bad, and station changes have made such a difference, why does any scientist pretend we can calculate global temperatures accurately?

The GISS map of South America. Left: The warming. Right: The NOAA map showing “grey” areas with no coverage. See Notalotofpeopleknowthat for source links.

Paul Homewood describes what he found when he compared the raw data with the official set: Massive Tampering With Temperatures In South America. [...]