Eric Worrall writes: Mann’s thermometer spliced hockey stick has taken even more damage in the last few days, with Steve McIntyre helpfully providing reconstructions based on tree rings which demonstrate…
Search Results for: Tree Ring Proxy
Forget tree rings, old TV footage of trees in cycle races is the newest climate proxy
From the “desperation to find climate change everywhere” department comes this, this, thing… TV coverage of cycling races can help document the effects of climate change BRITISH ECOLOGICAL SOCIETY Analysing…
Oh Mann! Paper demonstrates that tree-ring proxy temperature data is 'seriously compromised'
Michael Mann won’t be happy about this. A new paper now in open review in the journal Climate of the Past suggests that “modern sample bias “has “seriously compromised” tree-ring…
Linking the ENSO and PDO induced rainfall of the Pacific Northwest to proxy data in tree rings and lake sediments
From Penn State , another Mann paper with proxy sets, and a divergence problem. At least they are talking about the MWP, or as they call it, the Medieval Climate…
Tree rings as a proxy for historical ENSO reconstruction
From the University of Hawai’i’s International Pacific Research Center at Mānoa, comes this proxy reconstruction that does some similar things the infamous hockey stick reconstruction, but doesn’t need to pull…
Yamal treering proxy temperature reconstructions don't match local thermometer records
Circling Yamal 3 – facing the thermometers Guest post by Lucy Skywalker Let’s look closely and compare local thermometer records (GISS) with the Twelve Trees, upon whose treerings depend…
With Tree Rings On Their Fingers
But how do we actually know, and how much do we actually know, about historic and prehistoric temperatures? In this Climate Discussion Nexus “Backgrounder” video John Robson examines the uses,…
The Deadly Geo-engineering Idea which Refuses to Die
Greens seem to have an obsession with dimming the sun, otherwise known as starving plants of sunlight and stripping away our disease resistance.
Do European tree ring analyses indicate unusual recent hydroclimate?
MBF23 should be corrected and retitled because some key conclusions, including the headline claim in its title, are not supported by proper statistical analysis of the SPEI values that their…
“Courts, customers and Wall Street delivered rebukes to Exxon Mobil, Chevron and Shell”… Oh my!
Guest “it just doesn’t get any dumber than this” by David Middleton ‘Powerful signal’: In a single day, Big Oil suffers historic blows on climateCourts, customers and Wall Street delivered…
ExxonMobil “Cancelled” by The Wall Street Journal… Dumped From DJIA
Guest “WTF?” by David Middleton A couple of days ago Charles forwarded me a reader request for commentary on the recent decision to dump ExxonMobil from the Dow Jones Industrial…
Friday Funny: Hockeysticks are appearing in the sky, indicating the impending doom of climate change
From the universal boogeyman department. Dr. Roy Spencer captured this “Manntastic” footage that other day while looking for comet NEOWISE. Surely, it is a visual indicator of “end times”. The…
Concord and discord among Northern Hemisphere paleotemperature reconstructions from tree rings
From Science Direct Scott St. George Jan Esper Department of Geography, Environment and Society, University of Minnesota, Minneapolis, USA Department of Geography, Johannes Gutenberg University, Mainz, Germany Received 3 September…
You can always tell a Mann, but you can’t tell him much – why tree ring data (and climatic conclusions from it) sucks
From the “we only select wood for hockey stick construction” department. Steve McIntyre comes back into the fray with a scathing review of just how crappy the tree ring proxies…
McIntyre: ‘a reductio ad absurdum of tree ring chronologies as useful temperature proxies’
Steve McIntyre has a look at the “revised” PAGES2K temperature proxy dataset that includes tree rings and river sediments. He finds the usual ridiculous problems from the past, such as…
Hunger Stones and Tree Ring evidence suggests solar cycle influence on climate
The Solar Cycle is responsible for extreme weather and Climate change According to Tree ring and Hunger Stone events by Francis Tucker Manns Ph.D., P.Geo (Ontario) Artesian Geological Research Abstract Recent discovery of the…
New paper shows issues with temperature records: Comparing the current and early 20th century warm periods in China
Guest post by Dr. Willie Soon, Dr. Ronan Connolly & Dr. Michael Connolly Recently, a new paper which we co-authored with five other researchers was published in Earth-Science Reviews entitled,…
Fatally flawed paper: trees are proxies for the jet stream – and they say ‘now we have more extreme weather’
From the UNIVERSITY OF ARIZONA and the learn Liebigs Law before you make unsupportable claims department, comes this laughable paper that was conceived by the author, Valerie Trouet, at her parents house…
Warm periods in the 20th century are not unprecedented during the last 2,000 years
Public Release: 8-Aug-2017 From Eurekalert Institute of Atmospheric Physics, Chinese Academy of Sciences IMAGE: 2,000-year temperature reconstruction in China. view more Credit: Yang Liu & Jingyun Zheng A great…
Zombie Science, the worst example of climate data torturing – ever: withdrawn Gergis 2012 becomes Gergis 2016
I missed this article from July, and it deserves wide distribution. Steve McIntyre writes (excerpts): In 2012, the then much ballyhoo-ed Australian temperature reconstruction of Gergis et al 2012 mysteriously…
Remember that claim "global warming is causing cherry trees to bloom earlier" ? – Never mind, light pollution is likely the cause
Oh this is funny. I pointed out the other day on Twitter that “Global Warming is the universal boogeyman of the left”. Almost anything that seems slightly out of the…
Study: fewer Caribbean hurricanes during Maunder Minimum of solar activity
“We didn’t go looking for the Maunder Minimum, it just popped out of the data.” From the UNIVERSITY OF ARIZONA Shipwrecks, tree rings reveal Caribbean hurricanes in buccaneer era Records…
Briffa embraces tree ring uncertainty in new study, gives 'message to the paleoclimate community'
From the UNIVERSITY OF OTAGO and the “one tree doesn’t work anymore” department: Uncertainties in tree-ring-based climate reconstructions probed Current approaches to reconstructing past climate by using tree-ring data need…
Aproxymations
Guest Post by Willis Eschenbach Over at Bishop Hill, the Bish has an interesting thread about a new proxy reconstruction by Rob Wilson et al. entitled “Last millennium northern hemisphere…