From a Southern Methodist University press release Ethiopia 27 million years ago had higher rainfall, warmer soil Thirty million years ago, before Ethiopia’s mountainous highlands split and the Great Rift…
Category: Paleoclimatology
More proof of the Medieval Warm Period from midges
The whole can of larvae opened up by the flawed University of Colorado study turned press release keeps getting squirmier. The study, led by Yarrow Axford studies midge larvae in…
The Midge Warm Period
No that’s not a typo. Midges have just helped define the MWP, despite the claims of “proof” yesterday. Another recent contradictory study to involving those pesky Chironomids. In this case,…
If a hurricane dies in the middle Atlantic, does it make a sound?
Desperate de jour – trying to locate unreported hurricanes prior to the satellite era by looking through old seismometer records in an attempt to prop up the imagined “global warming…
Cosmic Rays and tree growth patterns linked
Here’s a surprise. The growth of trees in Britain appears to correlate to cosmic ray intensity. University of Edinburgh researchers have found that trees are growing faster when high levels…
IQ Test: Which of these is not upside down?
This is a simple IQ test anyone should be able to complete easily. Here are four images, which one of the images has elements that are not upside down? You…
How to trick yourself into unintentional cherry picking to make hockey sticks
This post over at Lucia’s Blackboard caught my interest because it shows you don’t need to operate heavy equipment (like Al Gore’s famous elevator scene) to get yourself a big…
Searching the PaleoClimate Record for Estimated Correlations: Temperature, CO2 and Sea Level
Guest Post by Bill Illis This post is the first of what will likely be a series on the PaleoClimate. In this part, we are just going to go through…
Trees named "Tyranny and Freedom" – which tree in the photo below is the older one?
While researching for one of WUWT’s previous posts by Caleb Shaw, which is a must read essay on the simple things that can explain tree ring records to scientists that…
A borehole in Antarctica produces evidence of sudden warming
From a Louisiana State University Press Release Oct 1, 2009 Algae and Pollen Grains Provide Evidence of Remarkably Warm Period in Antarctica’s History Palynomorphs from sediment core give proof to…
WUWT Opinion Poll – tree derived temperature data
This is for entertainment only. Given the week we’ve had, I thought it might be interesting to gauge some opinion about dendroclimatology. While we can certainly argue the merits of…
A hands on view of tree growth and tree rings – one explanation for Briffa's YAD061 lone tree core
One of the great things about WUWT is that people from all walks of life frequent here. We have PhD’s right down to Average Joe that read and post comments…
Ross McKitrick sums up the Yamal tree ring affair in the Financial Post
For those who don’t know, Ross McKitrick of the University of Guelph co-authored the first paper with Steve McIntyre debunking Michael Mann’s first Hockey Stick paper, MBH98. Ross wrote this…
A tree ring study estimating past rainfall and drought shows the southeast USA drought was mild compared to past events
Trees may be better rain gauges than they are thermometers. From a press release of: Killer’ Southeast Drought Low on Scale, Says Study Others Were Far Worse; Population, Planning Are…
Response from Briffa on the Yamal tree ring affair – plus rebuttal
First here is Dr. Keith Briffa’s response in entirety direct from his CRU web page: My attention has been drawn to a comment by Steve McIntyre on the Climate Audit…
MIRROR POSTING: YAD06 – the Most Influential Tree in the World
Climate Audit is getting hit with traffic again, so this is a mirror post for interested parties. – Anthony YAD06 – the Most Influential Tree in the World by Steve…
More Yamal tree ring temperature data: this data is flat as roadkill
Today while looking for something else I came across an interesting web page on the National Climatic Data Center Server that showed a study from 2002 A continuous multimillennial ring-width…
AGU presentation backs up McIntyre's findings that there is no late 20th century hockey stick in Yamal
If you are just joining us, the story is this. After 10 years of data being withheld that would allow true scientific replication, and after dozens of requests for that…
A must read: The Yamal Hockey Stick Implosion in laymans terms
WUWT readers may remember when Bishop Hill wrote Caspar and the Jesus paper. It was a wonderful narrative of the complex subject of tree rings and Steve McIntyre’s quest with…
More broken hockey stick fallout: Audit of an Audit of an Auditor
For those that don’t read a lot of the WUWT comments closely, there has been a scholarly argument going on between Tom P of the UK and several WUWT commentators…
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