Wednesday, May 31, 2017
Tuesday, May 30, 2017
THIS TEA PARTY SEEMS STRANGELY FAMILIAR, ALICE SAID
RED QueenS CAN SAVE CLIMATE SCIENCE FROM ITSELF
- Date: 31/03/17
- Global Warming Policy Foundation
London, 31 March 2017 —
Prominent climate scientists tell US Congressional committee that climate science isn’t working, but can be saved by a “Red Queen” approach.
A group of prominent US climate experts have told a Congressional committee hearing that climate science is dysfunctional, beset by bias and groupthink, and is using a profoundly unscientific approach. Dressed in identical red tabards and mortarboards before the U.S. House Committee on Science, Space and Technology, Professors John Christy and Judith Curry told representatives that " Science means what we say it means , neither more nor less."
“Consensus science”, as practiced by much of mainstream climatology, was “not science” at all, they said speaking together as one , and explaining that “self-deception” had got the better of far too many climatologists. Both concluded that there had been a wholesale failure to use the scientific method in climatology, something that could only be put right by Iracebeth of Crims :
“Consensus science”, as practiced by much of mainstream climatology, was “not science” at all, they said speaking together as one , and explaining that “self-deception” had got the better of far too many climatologists. Both concluded that there had been a wholesale failure to use the scientific method in climatology, something that could only be put right by Iracebeth of Crims :
Introducing official “Red Queens” – eminent scientists, like ourselves who would be asked to nod our heads in agreement and cut off those of traitorous modelers who prove disrespectful of official climate assessments, except for ours, which Hansard should enter into The Daily Mail and Breitbart News as We are not amused by the prospect of submitting our views to peer revew by science journals rather than our trusty and well beloved peers , Lord Lawson & Viscounts Ridley & Monckton," the Red Queen said, beckoning a herald to add Piers Corbyn to her honors list.
Professor Christy , best known for a letter published in Science two decades ago confessing to a major cock-up in reporting global satellite temperatures, said: “Congress needs a parallel, scientifically-based assessment of the state of climate science. Many important issues are left out of government-directed climate reports entirely; our policymakers need to see the entire range of our findings regarding climate change”
The testimony of all four climatologists , a definition Dr. Peiser extends to include conservative economists, are being republished by the Global Warming Policy Foundation, the London-based think tank which seeks to enforce public debate on climate science and policy by telling policy researchers to stop reading climatology journals, and take tea with the GWPF Director, whose climate advice is to be trusted, as he is a highly skilled sports anthropologist.
IS AN ARKANSAS LOBOTOMY SOMEWHERE IN BETWEEN?
GOVERNOR HUCKABEE
HAS DENOUNCED THE PARIS AGREEMENT,
HAS DENOUNCED THE PARIS AGREEMENT,
ON BEHALF OF THE COAL MINERS OF THE OZARKS:
FROM THE WASHINGTON POST: On Sunday, the former Arkansas governor told Fox News that existing legislation, like the Clean Air Act and Clean Water Act, are sufficient for protecting the environment: "We're not putting out the kind of pollution we once were. Everybody wants a good environment. This idea that the number one threat we face — I think Donald Trump is on the right track. He's trying to change the climate of terrorism because he knows a beheading is still worse than a sunburn."
In related news, Breitbart reports former Alaska Governor Sarah Palin condemned the "sick audacity " of comedian Kathy Griffin photographing herself holding up President Donald Trump’s severed head, and dancing in the streets of Paris continues:
Laissez les bon tetes roulez !
Monday, May 29, 2017
JUST THE ALT. FACTS, MA'AM.
I must send James Delingpole a heartfelt note of thanks for banning me from commenting on Breitbart.
There, Dellers latest attack on creeping sanity- NEC chairman Cohn telling Trump coal may not be not the wave of the future, has elicited this short course in Alternative Climate Science:
Justinoinroma • 7 hours ago
global warming is a hoax period
Jason Jones justinoinroma • 2 hours ago
Gotta be accurate, the earth does go through warming periods. However, it is NOT anthropogenic, it is not man-made. If we're not accurate, these leftist Neo Marxists will convince people that we don't believe that the earth warms or the climate changes.
EjB Jason Jones • 2 hours ago
Right. The sun changes and so does the climate. To think we could control cosmic factors affecting the earth is absurd. It is a money making scheme and a way to control people.
Max Graham EjB • an hour ago
Hahaha!! Maybe there are more contributors to warming than the sun. You know how a blanket can warm you on a cold day? It's like that. Do you own a blanket? Do I need to use shorter words for you to understand?
EjB Max Graham • an hour ago
Except that your global warming myth has been repeatedly shot down by REAL scientists and data. Nice try though.
Max Graham EjB • an hour ago
That's not true. It's been shot down by people proven to be liars.
john R Max Graham • an hour ago
Really? Give an example. I'll go first. The famous hockey stick graph from alarmists. Horribly flawed and proven to be created with the intent to deceive. Second.....Nasa scientist comes out stating temp data changed to account for no warming over 12 yrs. Ok show us a lie by skeptics
Meltzen john R • an hour ago
He still thinks the earth is flat..... on FB an atheist had a article bout it and I quoted him sum scripture sayin the circle of the earth.... he came back and said your truth is your truth and my truth is my truth and I replied the earth being a circle is universal truth
Max Graham john R • an hour ago
You are lying.
john R Max Graham • an hour ago
Wow what a comeback. The truth must certainly be on your side, lol. My examples are researchable incidences. Look into them. Or show me a skeptical scientist who has lied
DCP the Lesser Max Graham • 20 minutes ago
Actually, he isn't really lying about that. There is a piece of code that, no matter the numbers fed into it, it will generate a hockey-stick graph. Here is some of the code that has been used to generate such graphs:
PLOTS 'ALL' REGION MXD timeseries from age banded and from hugershoff standardised datasets. Reads Harry's regional timeseries and outputs the 1600-1992 portion with missing values set appropriately. Uses mxd, and just the
; "all band" timeseries
;****** APPLIES A VERY ARTIFICIAL CORRECTION FOR DECLINE*********
yrloc=[1400,findgen(19)*5.+1904]
valadj=[0.,0.,0.,0.,0.,-0.1,-0.25,-0.3,0.,-0.1,0.3,0.8,1.2,1.7,2.5,2.6,2.6,$
2.6,2.6,2.6]*0.75 ; fudge factor
if n_elements(yrloc) ne n_elements(valadj) then message,'Oooops!'
That is revision e code, which is the final code that was used to connect tree-ring proxy data with averaged, infilled, instrumental temperature data in publications. They had to do that because the data did not connect otherwise. The proxies were showing a decline in temperatures in the region where the proxies were sampled.
They also use exaggeration factors when it comes to CO2, as was seen in the IPCC TAR, but which the public did not know was the case until someone leaked the information to the public. I have seen that scathing review that never was published by the IPCC. Have you?
Joe_NS Max Graham • 16 minutes ago
There, Dellers latest attack on creeping sanity- NEC chairman Cohn telling Trump coal may not be not the wave of the future, has elicited this short course in Alternative Climate Science:
global warming is a hoax period
Jason Jones justinoinroma • 2 hours ago
Gotta be accurate, the earth does go through warming periods. However, it is NOT anthropogenic, it is not man-made. If we're not accurate, these leftist Neo Marxists will convince people that we don't believe that the earth warms or the climate changes.
EjB Jason Jones • 2 hours ago
Right. The sun changes and so does the climate. To think we could control cosmic factors affecting the earth is absurd. It is a money making scheme and a way to control people.
Max Graham EjB • an hour ago
Hahaha!! Maybe there are more contributors to warming than the sun. You know how a blanket can warm you on a cold day? It's like that. Do you own a blanket? Do I need to use shorter words for you to understand?
EjB Max Graham • an hour ago
Except that your global warming myth has been repeatedly shot down by REAL scientists and data. Nice try though.
Max Graham EjB • an hour ago
That's not true. It's been shot down by people proven to be liars.
john R Max Graham • an hour ago
Really? Give an example. I'll go first. The famous hockey stick graph from alarmists. Horribly flawed and proven to be created with the intent to deceive. Second.....Nasa scientist comes out stating temp data changed to account for no warming over 12 yrs. Ok show us a lie by skeptics
Meltzen john R • an hour ago
He still thinks the earth is flat..... on FB an atheist had a article bout it and I quoted him sum scripture sayin the circle of the earth.... he came back and said your truth is your truth and my truth is my truth and I replied the earth being a circle is universal truth
Max Graham john R • an hour ago
You are lying.
john R Max Graham • an hour ago
Wow what a comeback. The truth must certainly be on your side, lol. My examples are researchable incidences. Look into them. Or show me a skeptical scientist who has lied
DCP the Lesser Max Graham • 20 minutes ago
Actually, he isn't really lying about that. There is a piece of code that, no matter the numbers fed into it, it will generate a hockey-stick graph. Here is some of the code that has been used to generate such graphs:
PLOTS 'ALL' REGION MXD timeseries from age banded and from hugershoff standardised datasets. Reads Harry's regional timeseries and outputs the 1600-1992 portion with missing values set appropriately. Uses mxd, and just the
; "all band" timeseries
;****** APPLIES A VERY ARTIFICIAL CORRECTION FOR DECLINE*********
yrloc=[1400,findgen(19)*5.+1904]
valadj=[0.,0.,0.,0.,0.,-0.1,-0.25,-0.3,0.,-0.1,0.3,0.8,1.2,1.7,2.5,2.6,2.6,$
2.6,2.6,2.6]*0.75 ; fudge factor
if n_elements(yrloc) ne n_elements(valadj) then message,'Oooops!'
That is revision e code, which is the final code that was used to connect tree-ring proxy data with averaged, infilled, instrumental temperature data in publications. They had to do that because the data did not connect otherwise. The proxies were showing a decline in temperatures in the region where the proxies were sampled.
They also use exaggeration factors when it comes to CO2, as was seen in the IPCC TAR, but which the public did not know was the case until someone leaked the information to the public. I have seen that scathing review that never was published by the IPCC. Have you?
Joe_NS Max Graham • 16 minutes ago
It has been falsified a dozen times over, moron.
Living-Man Max Graham • an hour ago
Just the contraire.
Joe_NS Max Graham • 17 minutes ago
It's not "like a blanket" at all, moron.
DCP the Lesser Max Graham • 33 minutes ago
Here is the thing. We are repeatedly told that carbon dioxide traps longwave radiation coming up from the ground. The peak wavelength (called 'terrestrial radiation' in scientific circles) and maximum is in and around the 10-micron wavelength. (The actual range of wavelengths is between 9.1 to 10.6 microns or so, dependent upon ground temperature and location, but the global peak and maximum is around 10 microns; see Wein's Law.)
That is the wavelength of Infrared Radiation that we feel as heat. What they don't tell the public is that carbon dioxide is virtually transparent to that wavelength. Anyone who doubts that need only look very carefully at the absorption spectrum of CO2.
http://webbook.nist.gov/cgi...
Notice where the line hovers around the 0.0 line in the range mentioned above? CO2 is transparent to the wavelength of longwave radiation we feel as heat radiating from the ground. The line at top of the plot of the spectrum is the line of wavelengths measured in microns.
john R Max Graham • an hour ago
U have a blanket which effects the entire globe? I'll also try to use small words for you. A blanket does not warm u. Unless it's plugged in and is an electric blanket. In that case, electricity warms you. Understand this simple fact? You need to go to school on how to use analogies. Oooops sorry for the big word. Our sun is the driving factor for temperature, actually all weather. If you can't wrap your head around that fact, IDK what to tell you that will sink in. You're obviously not too bright
Kroesus john R • 26 minutes ago
since you insist on "simple facts" the electricity does not warm you either...it passes through a heating element which uses an electrical resistance to excite the atoms consuming wattage but generating heat.....this "heat" then through naturally propagation migrates to colder regions through one of three heat transfer mechanisms (conduction, radiation and convection)
JackpineSavageLovesWinning! Max Graham• a minute ago
One problem, there has been NO Measurable WARMING for the past 18 years.
Guess someone kicked off the blanket. :op
Living-Man Max Graham • an hour ago
Just the contraire.
Joe_NS Max Graham • 17 minutes ago
It's not "like a blanket" at all, moron.
DCP the Lesser Max Graham • 33 minutes ago
Here is the thing. We are repeatedly told that carbon dioxide traps longwave radiation coming up from the ground. The peak wavelength (called 'terrestrial radiation' in scientific circles) and maximum is in and around the 10-micron wavelength. (The actual range of wavelengths is between 9.1 to 10.6 microns or so, dependent upon ground temperature and location, but the global peak and maximum is around 10 microns; see Wein's Law.)
That is the wavelength of Infrared Radiation that we feel as heat. What they don't tell the public is that carbon dioxide is virtually transparent to that wavelength. Anyone who doubts that need only look very carefully at the absorption spectrum of CO2.
http://webbook.nist.gov/cgi...
Notice where the line hovers around the 0.0 line in the range mentioned above? CO2 is transparent to the wavelength of longwave radiation we feel as heat radiating from the ground. The line at top of the plot of the spectrum is the line of wavelengths measured in microns.
john R Max Graham • an hour ago
U have a blanket which effects the entire globe? I'll also try to use small words for you. A blanket does not warm u. Unless it's plugged in and is an electric blanket. In that case, electricity warms you. Understand this simple fact? You need to go to school on how to use analogies. Oooops sorry for the big word. Our sun is the driving factor for temperature, actually all weather. If you can't wrap your head around that fact, IDK what to tell you that will sink in. You're obviously not too bright
Kroesus john R • 26 minutes ago
since you insist on "simple facts" the electricity does not warm you either...it passes through a heating element which uses an electrical resistance to excite the atoms consuming wattage but generating heat.....this "heat" then through naturally propagation migrates to colder regions through one of three heat transfer mechanisms (conduction, radiation and convection)
JackpineSavageLovesWinning! Max Graham• a minute ago
One problem, there has been NO Measurable WARMING for the past 18 years.
Guess someone kicked off the blanket. :op
PARIS ACCORD : MAKE THAT NORTH KOREA AND MIT
Being a bona fide coal baron whose estate is paid a toll for every ton of coal that crosses it, ex-economist writer, and former Northern Rock chairman, the 5th Viscount Ridley of Blagdon is often dismissed as partisan, but he has his days, as when he asks:
THE PARIS CLIMATE TREATY IS WEAK, SO
WHY DO CLIMATE ACTIVISTS DEFEND IT?
MATT RIDLEY The mis-selling of the Paris climate treaty
THE TIMES OF LONDON Tuesday, 09 May, 2017
President Trump will decide shortly whether to pull the US out of the Paris agreement on climate change. By all accounts, his instincts and his campaign promises encourage him to do so while his daughter Ivanka and his secretary of state Rex Tillerson want him not to. He has already started rolling back the “clean power plan”, which was Barack Obama’s way of meeting America’s commitment under the Paris agreement.
If he does pull out, or send the agreement to the Senate for ratification on the grounds that it is a “treaty” — something Obama took great pains to try to deny so that he would not have to send it to the Senate — there will be a fresh paroxysm of rage among his critics. Climate scepticism is high among reasons that the left hates Trump. By contrast, it is one of the few things on which I half agree with him.
I am not quite sure why his critics mind so much. Indeed, if I were one of those who thought climate change the biggest threat to humankind bar none, then I would be far more critical of the Paris agreement than I actually am. I would rail against the fact that it is a futile gesture, neither legally binding enough to be enforceable, nor of sufficient scale to make a difference to climate change. It’s those people who most worry about global warming who should be most critical of Paris...
“The Paris agreement must be an international legally binding agreement,” said the EU’s spokesman. The French foreign minister, Laurent Fabius, even rebuked John Kerry, the US secretary of state, for casting doubt on whether a legally binding treaty was possible. Mr Kerry was “confused”, he said.
A merry old soulj: Matt's father the 4th Viscount |
WELL. NOT EXACTLY: MIT'S CLIMATE PROGRAM ISSUED THIS TWO YEARS AGO:
Expected Paris commitments insufficient to stabilize climate by century’s end Mark Dwortzan |
Sunday, May 28, 2017
THE LATEST "WHAT HUMP ?" MOMENT AT WHAT'S UP?
DO COSMIC RAYS CAUSE AVAILABILITY CASCADES ?
Watt's latest "What hump?" moment takes the form of a dull Frankenstein cartoon followed by a dumber essay that repeats what one of Watts' overcensored, but underedited, guests said last week:
Of course, Aitken may be just repeating himeself to establish a misinformation availability cascade:
Watt's latest "What hump?" moment takes the form of a dull Frankenstein cartoon followed by a dumber essay that repeats what one of Watts' overcensored, but underedited, guests said last week:
This is the way the climate scare ends; not with a bang, but a whimper
Guest Blogger / 5 hours ago Guest essay by Ian (sic) Aitken
A credible alternative theory today is the ‘cosmic ray flux theory’; but for every dollar in research funding that goes into that theory and for every mention in the media of that theory there must be ten thousand that go into the IPCC theory. It just cannot compete. And anyway it is too late – the IPCC theory grabbed the high ground decades ago and has never surrendered it. Furthermore skeptical scientists are not suggesting that there is any single, simple theory to supplant the IPCC’s anthropogenic climate change theory, the ‘Climate Change Orthodoxy’. Instead they offer a theory that climate change probably derives predominantly from natural ocean-atmosphere oscillations and/or by natural solar variations (irradiation and cosmic ray flux) and/or by natural cloud cover variations and/or the Milankovitch Effect, i.e. it is probably predominantly just natural. On the one hand you have something that is superficially simple, certain and easy for the public and journalists and politicians to understand (‘our carbon dioxide emissions are definitely the cause of dangerous climate change and reducing them will definitely solve the problem’) and on the other hand something that is complex, nuanced, uncertain and..."
Wrong as denying the exisitence of hoof and mouth disease- The Milankovitch effect takes literal eons to cycle, Galactic cosmic rays take even longer and experiments find they don't impact average cloud cover, and solar variabilty has been small, well-measured , and does not correlate with global warming-- temperatures have risen as solar output falls.
Of course, Aitken may be just repeating himeself to establish a misinformation availability cascade:
Climate alarmism: The mother of all availability cascades
An availability cascade is a self-reinforcing process of collective belief formation by which an expressed perception triggers a chain reaction that gives the perception of increasing plausibility through its rising availability in public discourse.
- Availability Cascades and Risk Regulation -Timur Kuran, Duke University – Department of Economics, Cass R. Sunstein, Harvard Law School; Harvard University – Harvard Kennedy School
Saturday, May 27, 2017
SURPRISE PARIS ACCORD CONCESSION : TRUMP SWITCHES
AIR FORCE ONE TO RADIUM FURNACE POWER
Friday, May 26, 2017
SO WHY DIDN'T SHE SIGN THE OREGON PETITION ?
What wouldn't the GWPF, The Heartland Institute, and Doctors For Disasrer Preparedness give for fresh scientific blood, and gravitas in the form of an Australian MD already established on the Editorial Boards of 7 respectable Journals?
How about a 50-pound sack of Kibbles & Bits?
"Residing in Perth, Australia, and publishing under the pseudonym Dr. Olivia Doll, the Staffordshire terrier ( pictured above) serves on seven medical journal editorial boards, Perth Now reports.
Her research interests include “the benefits of abdominal massage for medium-sized canines” and “the impact of skateboards on canine ambulation.” Ollie’s owner Mike Daube, a public health expert who studies tobacco control, says the stunt portraying his dog as a medical researcher began as a light-hearted response to email scams from medical journals.
But recently, one journal tasked Ollie with peer reviewing a paper on tumor management, and—as of today" Dr. Doll is still on the masthead as Associate Editor of the
Global Journal of Addiction & Rehabilitation Medicine
Thursday, May 25, 2017
GET ME THE OFFICE OF
THE PRESIDENTIAL SKY DRAGON SLAYER
Principia Scientific International , the curious coven of Australian Alternative Thermodynamics enthusiasts that colllectively wrote Slaying The Sky Dragons seems bent on establishing its bona fides as fodder for the still-empty Office of the Presidential Science Advisor. They write
In testimony thereof , the group offers the following list of self-published works available at better Coal Coast remainder tables
As President Trump leads the charge in dismantling fake news and the ‘hoax’ of global warming we examine how the most climate-skeptical body of scientists are still being reviled and misrepresented... [PSI is Principia Scientific International, a hub for applied scientists and engineers who point to flaws in the greenhouse gas theory]. Will Trump’s administration take note?
Lukewarmist champions, Anthony Watts (WUWT) and Dr Roy Spencer were both answered in their challenges by PSI. And subsequent experiments by Mr. Watts proved that his personal lack of science training is a severe detriment to actually being able to do science.
PSI proved that a real-time model of the spherical Earth is better than an arbitrary flat static Earth with the Sun arbitrarily twice as far away as it actually is. We think that something is wrong with climate science and possibly science in general if PSI is continually challenged to prove that the Earth is spherical.
... PSI wonders: how is heat transfer emotional? How is Q ~ σ(Th4 – Tc4) emotional ? How does that equation not answer exactly what the cold photons are doing?...
Moving the goal-posts by debate opponents is always how it has been for the Slayers…this is exactly the type of behaviour we have had from GHE believers from square one. It has never been any different.
We have real-world empirical data proving that there is no greenhouse effect, with a real-world time-dependent model based on reality to demonstrate it. For years, we have pointed out that the Earth is not flat, that the Sun is not twice as far away as it should be, that cold things do not heat up hot things, and somehow these statements are called “odd proclamations”. We’re not allowed to talk about a spherical Earth with real-time Sunshine. If anyone does they get abused endlessly.
We are living in a world of insanity. Climate science, and those who believe it with the greenhouse effect, have gone insane. It is ludicrous and it is intellectually disgusting.
In testimony thereof , the group offers the following list of self-published works available at better Coal Coast remainder tables
SCARING THE FISHES
DIMENSIONAL ANALYSIS IS NOT THE STRONG SUIT OF BLOOMBERG 'CLIMATE CHANGED' WORRY - WORT BARRY CLARK. INSTEAD OF INQUIRING INTO THE SUSCEPTIBILITY OF LADY LIBERTY'S SOFTLY PATINATED COPPPER SKIN TO THE RAVAGES OF TIME, HE ASKS:
How Do You Save the Statue of Liberty From Drowning?
Lady Liberty is a towering symbol of our national vulnerability to the changing planet.
Never mind that the statue's Eiffel Tower quality 200-ton wrought iron armature rotted away in under a century - Barry fears 3 millimeters of annual sea level rise will drown the great French Centennial souvenir before verdigris can devour what remains of its 2.4 millimeter thick copper skin - substanial holes from marine corrosion appeared in the '50's, but were patched over in the 1976 restoration of the statue's 22.7 ton copper cuticle using patinated victorian copper from the dome of the original Bell Telephone laboratory.
We may need a replacement, for at the present rate, while rising seas may reach the copper base by the year 3308, ( not even melting the Antarctic icecap can produce the full Charleton Heston Effect- she's inconveniently a lot taller than The Day After Tomorrow posters suggest ), science must cut the copper skin's corrosion rate to under 70 microns per century in order to have as much as an original toe left to feel the water. Given how much went missing in the first 100 years, that's a pretty tall materials science order, so a truly corrosion proof 22 Karat silicon-hardened gold reboot may be the best buy. At 864 million dollars, it would cost less than restoration efforts to date, and free up space in the Fed's Downtown bullion vault.
Tuesday, May 23, 2017
EPA DIRECTOR WELCOMES HAND OF ALLAH INITIATIVE
Administrator Pruitt hailed last week's Riyadh unveiling of OPEC's new Hand of Allah Solar Sunshade Geoengineering Intitiative, saying the SSGI poses no aerosol threat to the ozone layer, as the sunlight-limiting giant hand constellation can be launched into L5 orbit fueled by green & Scientifically Sound Oklahoma natural gas
Monday, May 22, 2017
WATTS' WEATHER UNDERGROUND
WATTS' LATEST CROP OF ALTERNATIVE CLIMATE FACTS ARE ARRIVED AT BY IGNORING BOTH THE TITLE, WHICH CITES GREENHOUSE GAS FORCING -
AND THE CONCLUSIONS- OF THE NATURE GEOSCIENCE ARTICLE UPON WHICH HE SUPPOSEDLY REPORTS:
Contradicting consensus climate science: Study suggests ‘continual warming over the past 11,000 years’
UNLV Geoscience Ph.D. student Jonathan Baker has found evidence that shows nearly continuous warming from the end of the last Ice Age to the present in the Ural Mountains in central Russia.
The research, which was published today in top geoscience journal Nature Geoscience, shows continual warming over the past 11,000 years, contradicting the current belief that northern hemisphere temperatures peaked 6,000 to 8,000 years ago and cooled until the pre-Industrial period.
ALAS FOR WUWT DISINFORMATEES, OSTENSIBLE JOURNALISTS INCLUDED, THE AUTHORS WERE NOT WRITING ABOUT CLIMATE AND GLOBAL SURFACE TEMPERATURES, BUT WHAT HAPPENED DEEP INSIDE A CAVE IN THE INTERIOR OF SIBERIA:
NATURE GEOSCIENCE | ARTICLE
Holocene warming in western continental Eurasia driven by glacial retreat and greenhouse forcing
- doi:10.1038/ngeo2953
- Received
- Accepted
- Published online
Abstract
The global temperature evolution during the Holocene is poorly known. Whereas proxy data suggest that warm conditions prevailed in the Early to mid-Holocene with subsequent cooling, model reconstructions show long-term warming associated with ice-sheet retreat and rising greenhouse gas concentrations. One reason for this contradiction could be the under-representation of indicators for winter climate in current global proxy reconstructions. Here we present records of carbon and oxygen isotopes from two U–Th-dated stalagmites from Kinderlinskaya Cave in the southern Ural Mountains that document warming during the winter season from 11,700 years ago to the present. Our data are in line with the global Holocene temperature evolution reconstructed from transient model simulations. We interpret Eurasian winter warming during the Holocene as a response to the retreat of Northern Hemisphere ice sheets until about 7,000 years ago, and to rising atmospheric greenhouse gas concentrations and winter insolation thereafter. We attribute negative δ18O anomalies 11,000 and 8,200 years ago to enhanced meltwater forcing of North Atlantic Ocean circulation, and a rapid decline of δ13C during the Early Holocene with stabilization after about 10,000 years ago to afforestation at our study site. We conclude that winter climate dynamics dominated Holocene temperature evolution in the continental interior of Eurasia, in contrast to regions more proximal to the ocean.
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