Claim: Ghenghis Khan rode climate change to power

From the National Science Foundation Press Release 14-032

Climate of Genghis Khan’s ancient time extends long shadow over Asia of today

Current drought in Mongolia could have serious consequences

View of the modern-day Orkhon Valley near KarakorumView of the modern-day Orkhon Valley near Karakorum, the ancient Mongol capital.

Credit and Larger Version

March 10, 2014

Climate was very much on Genghis Khan’s side as he expanded his Mongol Empire across northeastern Asia.

That link between Mongolia’s climate and its human history echoes down the centuries, according to findings reported in this week’s issue of the journal Proceedings of the National Academy of Sciences (PNAS).

But climate may no longer be the boon it was during the latter, wetter part of Genghis Khan’s reign. The early years were marked by drought.

Mongolia’s current drought conditions could have serious consequences for the Asia region’s human and other inhabitants.

The discovery linking ancient and modern history hinges on wood. Trees provide an extensive climate record in their rings.

The tree rings’ tales of ebbs and flows in water availability show that Genghis Khan took power during a severe drought, says Amy Hessl, a geographer at West Virginia University and co-author of the paper.

But, the scientists found, the rapid expansion of Genghis Khan’s empire coincided with the wettest period in the region during the last millennium.

“Through a careful analysis of tree-ring records spanning eleven centuries, the researchers have provided valuable information about a period of great significance,” says Tom Baerwald, a program director for the National Science Foundation’s (NSF) Dynamics of Coupled Natural and Human Systems (CNH) Program, which funded the research.

CNH is one of NSF’s Science, Engineering and Education for Sustainability (SEES) programs. CNH is supported by NSF’s Directorates for Geosciences; Biological Sciences; and Social, Behavioral & Economic Sciences.

“The results also provide insights into the complex interactions of climate, vegetation and human activity in semi-arid regions today,” Baerwald says.

Though political realities would also have played into Genghis Khan’s power grab, the regional climate at the time appears to have supported his empire’s expansion.

The climate provided literal horsepower as armies and their horses fed off the fertile, rain-fed land.

“Such a strong and unified center would have required a concentration of resources that only higher productivity could have sustained, in a land in which extensive pastoral production does not normally provide surplus resources,” the paper states.

While the ramifications for past history are significant, so, too, are they for today’s.

The scientists believe that human-caused warming may have exacerbated the current drought in central Mongolia, similar to the drought that coincided with Genghis Khan’s initial rise to power.

“If future warming overwhelms increased precipitation, episodic ‘heat droughts’ and their social, economic and political consequences will likely become more common in Mongolia and Inner Asia,” according to the paper.

Hessl co-authored the report with scientists Neil Pederson of the Lamont-Doherty Earth Observatory, Nachin Baatarbileg of the National University of Mongolia, Kevin Anchukaitis of the Woods Hole Oceanographic Institution and Nicola Di Cosmo of the Institute for Advanced Study.

-NSF-

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March 12, 2014 3:16 pm

It is worse than we thought, now we have the specter of a CAGW induced modern Genghis Khan risking Western Civilization.
To PNAS, I am LMAO!
John

Jimbo
March 12, 2014 3:22 pm

I still Khana understand this captain. We know that the late Holocene has been cooling until the Hokey Schtick.

Abstract
Holocene East Asian monsoonal precipitation pattern revealed by grain-size distribution of core sediments of Daihai Lake in Inner Mongolia of north-central China
…………….During the Late Holocene since ca 3100 cal yr BP, grain-size values suggest that precipitation decreased. However, during the Late Holocene, relatively higher Md values and silt contents occurring between ca 1700 to 1000 cal yr BP may denote an intensification of hydrological cycles in the lake area. Changes in the East Asian monsoonal precipitation were not only directly linked with the changing seasonality of solar insolation resulting from progressive changes in the Earth’s orbital parameters, but also may have been closely related to variations in the temperature and size of the Western Pacific Warm Pool, in the intensity of the El Nino–Southern Oscillation, and in the path and strength of the North Equatorial Current in the western Pacific.
http://dx.doi.org/10.1016/j.epsl.2005.02.022

Old England
March 12, 2014 3:31 pm

‘Riding the Business Cycle’ was, from memory, written and published around the late 1990s. One of the areas it explored was how the cooler (colder) periods of history produced more conflict and the migration and conquests of people such as the mongols. Warmer periods were marked by stability, major cultural advances and an absence of wars. Interesting book with some pertinent comments and predictions, and well worth reading.
So much ‘research’ now seems to cover topics that have been well researched before, but seeking only to add a climate change dimension and gather the funds that support it. I was going to say that, to me, it becomes ever more difficult not to view climate scientists producing this type of research (aimed at climate change dollars) as no different to prostitutes , but I think prostitutes have more honesty and integrity so I would be wrong to think that.

March 12, 2014 3:45 pm

There is nothing new about any of this material. Ellsworth Huntington wrote an article in 1907 titled “The Pulse of Asia”. It built around the idea of wet and dry cycles in central Asia, in particular the Tarim and Dzungarian Basins. The growth of population in wetter periods led to outpouring of what became known as Asian hordes both east into China (hence the great Wall) and west at on point as far as Rome in 300 AD.
Huntington wrote a book in 1915 titled “Civilization and Climate” that later, along with the works of Ellen Churchill Semple became part of environmental and climatic determinism.
http://en.wikipedia.org/wiki/Ellen_Churchill_Semple
Semple was involved in the ideas of anthropogeography paralleling the work done by Friedrich Ratzel in Germany. Sadly all of these became used by Hitler to justify Aryan superiority and a bizarre form of social Darwinism that had the State as an organism that had the natural right to grow at the expense of weaker states.
The drought cycles in Asia are part of the well documented drought cycles of the mid latitudes that correlate with the 22 year sunspot cycle. The droughts alternate between hot and dry cycles with the more delay hot droughts occurring about every 44 to 50 years. They are also reflected in the other well known assessment of cyclical precipitation patterns in Asia the Kondratieff Cycle.
http://www.kondratieffwavecycle.com/kondratieff-wave/
So much sidelined by the absolutely useless political climate of the IPCC.

Steve from Rockwood
March 12, 2014 3:51 pm

Crispin in Waterloo says:
March 12, 2014 at 1:58 pm
@Eric Simpson
>You know who didn’t ride climate change to power?
That is hilarious! I was going to phrase it, “Who didn’t ride climate change to power” with a list of Green Party members who got in on the % of vote system.
——————————————————————
That’s because Gore got on the wrong train – the gravy train.

Steve from Rockwood
March 12, 2014 3:53 pm

Tree rings are a proxy for temperature.
Tree rings are a proxy for precipitation.
?

March 12, 2014 3:54 pm

We should also discuss the implications of the NSF position that natural and human systems are coupled. Most people are unaware of just how much of a role the behavioral sciences now play in what NSF funds and advocates for.
Coupling goes beyond that and no chuckling at the implications. These are not fun. That’s a euphemism for NSF asserting there is a dialectical (think Marx and Hegel) process going on where one changes the other. It is an inherently political and transformational weapon to be yielding that goes far beyond the way any of us use the term ‘science.’
Back to making clam chowder for college kid headed home for spring break.

Bruce Cobb
March 12, 2014 3:54 pm

These pseudoscientists sure are riding the faux issue of manmade climate change. But, I predict a serious drought in their future climatist careers.

Tom J
March 12, 2014 3:57 pm

I say let’s run with it: Global warming will cause Genghis Kahn to return! Even the National Science Foundation supports this kind of conclusion! Who knows, maybe the Senate Democrats really did an all nighter this week to prevent the return of Genghis Khan? The son of Genghis Kahn. The Bride of Genghis Kahn. The Return of Genghis Kahn. Yes folks, all of you, must sacrifice, give up your ease of travel, your AC, your private suburban homes, your lifestyles, to prevent the return of … Genghis Kahn.

Jimbo
March 12, 2014 3:57 pm

Since Warmists like using weather events to back their case here is the effect of global warming.

3 July 2013
“19 killed as torrential rains hit Erdos, China’s Inner Mongolia”
http://news.xinhuanet.com/english/photo/2013-07/03/c_132509132.htm
———————-
29 July 2013
Rain-triggered floods hit Inner Mongolia
http://english.peopledaily.com.cn/90882/8344117.html
———————-
China: Floods and Hailstorms – May 2012
Since early May 2012, torrential rains have been lashing regions across China…….
A new round of rain storms starting in late June have killed at least 61 people with 11 others missing in 10 provinces affecting approximately 17.44 million people in Jiangsu, Anhui and Shandong provinces in the east; Hunan, Hubei, Jiangxi provinces in central China; Guangxi and Guangdong provinces in the south; Chongqing Municipality and Sichuan Province in southwest; and Shaanxi province and Inner Mongolia Autonomous Region in northwestern China. Latest reports state 1.17 million people have been evacuated, while about 982,400 hectares of farmland have been affected by bad weather and about 66,000 houses have collapsed.
http://reliefweb.int/disaster/st-2012-000077-chn

Please nobody tell me that this is unfair. Tell that to the Warmist first. They CLING to every bloody weather event to back their failed hypothesis. Sauce, goose, gander and all that.

ROM
March 12, 2014 4:01 pm

To add to the above couple of posts, a short summary of the immense wealth and populations of the Central Asian cities destroyed by the Mongol Hordes,
Such cities of perhaps a half a million or more each in population would never have arisen in droughted periods of climate across Central Asia.
From; http://faculty.washington.edu/modelski/CAWC.htm
[ quoted]
“The following Table 1 summarizes our information about the seven most important cities of Central Asia,so that we might ask, which of them had risen in the early modern age, to millionaire-city status.
They are Merv, Nishapur, Herat, Samarkand, Bokhara, Rayy, Balkh, and Urgench.
This information will be compared with data for Zhongdu (Beijing), and Baghdad. The important part of that information relates to the numbers reportedly killed by Mongols in the course of their campaign of conquest against the Khwarazm empire, These were then probably among the wealthiest, most literate and generally civilized areas of the world.
The question is the following: do the extant historical accounts of Mongol massacres over the period 1215-1258 allow us to draw conclusions about Central Asian city populations in 1200, and the preceding one-two centuries?”
[end]

Crispin in Waterloo
March 12, 2014 4:34 pm

@ROM
“There are numerous references in the history of the Mongol Hordes of how they rose to power through a series of decades long good seasons across the steppes of Central Asia which allowed them to dramatically increase their livestock numbers, particularly the Mongolian Horses that were the backbone of their civilisation and also allowed their numbers to increase quite dramatically.”
A Mongolian friend of mine claims that the reason for their success was in large part due to their invention of a weapon: the use of the horse as a weapon of war. Horses were previously used as transport, but not as an actual weapon. I can’t prove it, but an effective 18th Century cavalry charge was a formidable weapon. Did the Mongolians invent that?
Khan hated farmers because he felt fields were a waste of perfectly good grazing. He had millions of farmers killed in China. The diet consisted mainly of meat with meat on the side.
I asked, “Aren’t there any vegetables in the traditional diet?” and was told. “In Mongolia, chicken is a vegetable.”

u.k.(us)
March 12, 2014 4:44 pm

Assuming we could control the weather.
Drought/flood, warm/cool.
Where would “we” make it occur ?
Or is there a goldilocks plan in the works ?
Where warring nations, respect the climate normality ?
Ya gotta be kidding.

D Nash
March 12, 2014 4:58 pm

from Rockwood
It depends on the tree. The Mongol trees (highly mobile nomadic trees) have tree rings that are dependent on water alone. The more stationary trees of the north have tree rings dependent on temperature. It’s the crazy aquatic trees that have the CO2 tree rings. Since no tree growth is dependent on the sun, shading, wildlife, insects or earth composition, these are the only three types of ometers available in tree ring study.

D Nash
March 12, 2014 5:13 pm

@Crispin in Waterloo
Cavalry charges were first used many centuries before the Mongols (Romans, Greeks and Persians and others were pretty good at it). What the Mongols brought to the table was their mounted archery and ability to maneuver at high speeds on their sturdy little mounts as they moved in and out engagements.

Katherine
March 12, 2014 5:24 pm

The scientists believe that human-caused warming may have exacerbated the current drought in central Mongolia, similar to the drought that coincided with Genghis Khan’s initial rise to power.
Right. You can believe all you want, but if it isn’t backed up by proof, belief is all it is.

Box of Rocks
March 12, 2014 5:39 pm

Say….
didn’t some folks head over to what is now called the ‘americas’ when the water froze and a land bridge was exposed so they could literally just walk over….

March 12, 2014 5:42 pm

Crispin says:
A Mongolian friend of mine claims that the reason for their success was in large part due to their invention of a weapon: the use of the horse as a weapon of war.
Many scholars say it was the invention of the stirrup that made the difference, because it enabled the rider to shoot arrows from a relatively stable platform.
[Loved the chicken as vegetables story…]

Retired Engineer
March 12, 2014 6:20 pm

D Nash says:
“these are the only three types of ometers available in tree ring study.”
So a tree ring circus?
(sorry about that …)

DesertYote
March 12, 2014 6:23 pm

Steve Keohane says:
March 12, 2014 at 1:06 pm
So it was wetter and colder in the latter part of Genghis Khan’s reign?
###
Cold and dry THEN warm and wet.

DesertYote
March 12, 2014 6:27 pm

Warmer earth, more atmospheric moister. More moister, wetter deserts. Wetter deserts are cooler deserts.

March 12, 2014 6:47 pm

Chris R. says:
March 12, 2014 at 2:13 pm
Had Shah Muhammad II received the
Mongol envoys as ambassadors and opened peaceful trade–
———————————————————————————-
Sometimes it is the little details in life that can make a large difference.

Legatus
March 12, 2014 6:47 pm

Problems with this study:
So, tree rings measure rain, not warmth like Mann said? The peeps who made this study must be burnt as heretics!
So let me get this straight, wetter Mongolia means more resources to conquer with, dryer less. Ghenghis conquered China and much of the surrounding kingdoms when he had less resources then, right? I mean, at that time, the only resources he had came from that drier Mongolia. And then he was able to move into more territory when he already owned most of Asia and thus did not need the resources of a wetter Mongolia? So, how, exactly, did a wetter Mongolia help him? Does less rain or more rain help you conquer, I am confused!
The plan, associate “Climate Change” with Ghenghis and Mongol Hordes, thus associating it with fear, an advertising trick.
The computer models say that warmth created by more CO2 will increase the amount of water vapor, which will increase the warming to dangerous levels (no water vapor increase, no dangerous levels). This brings two problems, the first being that no such increase of water vapor has been seen, and second, more water vapor in the air brings drought??
With no warming for over 17 years, what, exactly, is causing this drought?
There was drought during those olden times, this was, of course, caused by Ghenghis invading China using millions of SUV’s, right? No? But, but, but, you mean they had a drought caused entirely by natural causes? And that means that the drought today could be caused by the same, as could future droughts? So, this is a relevant study…how?
Though political realities would also have played into Genghis Khan’s power grab, uh, yeah, kinda an understatement there. With that level of understatement, I have to assume that they know very little of how Ghenghis did it. By the time he moved on (a now weak and decadent ) China, he had the most loyal, well led, well trained, well disciplined, toughest army ever seen, possibly ever in this worlds history (that only lasted some decades, though, they got soft). He had also already conquered several large, horse breeding areas, and thus did not need a wetter Mongolia to provide his standard 4 (up to 16 for long campaigns) horses per man. It also helped that his armies extreme long range coordination, incredible speed, and incredible training, moral, and leadership meant that he was often outnumbered yet won easily anyway, so they did not need huge resources back home because they did not need a larger army than their, uh, victims. They had already thoroughly spied out their enemies as well, and knew all their weaknesses and exploited them, as well as mapping and a preliminary propaganda campaign, making things much easier (they had a 17 year plan for dividing and conquering Europe). Many of their enemies during his time, such as China and Persia, had become weak, decadent, and divided anyway. I could tell you more but it comes from “The Secret History of the Mongols”, and you don’t have clearance. Sorry.
By the way, Ghenghis did not conquer China because his area was in drought, he conquered it because they had decades earlier, when they were strong and smart, supported some Mongol tribes against others, so as to keep them divided and weak. One of the tribes they supported poisoned his father, the tribal chief, causing his tribe to dissolve. He then started, with only two troops ( he killed the third) and 8 1/2 horses, on a long campaign of payback. A very determined fellow, and his mother (who he was terrified of all his life, and for good reason) even more so. After he conquered Mongolia proper, mostly made possible by no interference from a now weak and decadent China, he turned on China (first taking out their former, but now abandoned allies who were in the way anyway). And then, without any drought to prompt it, he moved on from there, go figure.
Mongols versus climate:
When they invaded China, they killed about 1 out of every 3 Chinese, that plus many other mass killings and destruct ions of towns and cities elsewhere should have made a pretty big impression on the climate back then, right? I mean, all those burning cities (and towns, and villages), all that CO2, all those areas now devoid of people, farming, and the like, all that new wilderness.
When they invaded Persia, they did not want to be outflanked though this one area, so months before they went into that large, green, fertile area and converted it into a desert. It has stayed a desert to this very day. You don’t need modern industry to destroy an environment, a fact that will be discovered if the warmists have their way, destroy the economy, and desperate people do whatever they can to survive.
Oh, and when they decided to invade Russia, they went in the winter, so that the rivers would be frozen over and make movement easier.

ROM
March 12, 2014 6:50 pm

Crispin in Waterloo 4.34pm
As I understand the history of Ghengis Khan’s [ born “Temujin” 1162- August 1227. reputed to have died of a nose bleed ] Mongol hordes it was as you say. each Mongol warrior was accompanied into battle by his three other horses.
As one tired he switched to the next one which enabled the Mongols to cover vast distances at speeds that were almost incomprehensible to the city dwellers of Central Asia and northern China.
The Mongols also had a means of communication and / or planning which enabled a battle where the opposition was locked into what seemed the main battle front when another cavalry mounted Mongol army would appear almost if out of nowhere and without any warning from a different direction and roll up the opposing army from the flanks or rear.
That allied with the invention of the immensly powerful compound bow made for a fast moving , highly flexible horse mounted, warrior cultured army to rapidly destroy the far more traditional opposition armies composed of a small group of professional foot soldiers reinforced by a vast bulk of poorly trained, poorly paid poorly armed peasant conscripts.
The stirrup appears to have been invented sometime around 200 or 300 AD or a thousand years before the Mongols went a’conquering
It may have been re-invented a number of times and in many different places. There is no record of just who or where the original invention of the stirrup occurred as all the early versions were made from either wood or bone and are long gone.
The realisation is that the horse reliant Mongol armies could not have reached their recorded historical performance in the field of battle across Asia without a series or decades of good seasons to enable them to build up both the numbers of well fed war horses [ more like ponies of immense endurance and fully adapted to the harsh conditions of the steppes, than horses as we think of them ] that were trained for battle as well as their tribal population numbers to be able to sustain those conquests over such distances and decades of time.
Drought of any duration during the period prior to and during the Mongol conquests would have both weakened their war horses as well as reduced the horse numbers which for the totally horse reliant Mongols would have created a much higher level of hunger and deprivation which in turn would have prevented the large increase in the various Mongol tribe’s populations which was a prime requisite that enabled Ghenghis Khan and his horse mounted Mongol armies to conduct a sustained long distance war on the scale they did across central and western Asia.
The changing climate has had an immense effect upon human history for the couple of millions of years the precursors of our modern Homo Sapiens species has been around .
And that includes the human bottleneck of some 80,000 years ago where our species with only perhaps no more than 20,000 breeding pairs or even less in numbers came very close to extinction.
The cause is arguably but not totally accepted and still to be proven for the bottleneck , explosive eruption of Tambora in the northern part of Sumatra and the possible decades long severe global cooling that took place after that colossal volcanic event.
And for what it is worth, we were all black when our species moved out of east Africa across the land bridge into what is now the Middle East.
The white skin is an adaption to the absolute need for Vitamin D production from the lower UV of the more northern climes.
Even now black skinned races oft times suffer severe Vitamin D deficiencies when residing for long periods in the more northern, lower solar radiation climates.

Legatus
March 12, 2014 7:04 pm

By the way, the idea that Ghenghis was able to conquer with many people and horses who grew due to wetter climate does not exacly square with reality. Before he moved on China, Persia, etc, he first conquered all the surounding nomad tribes, since they had been formerly pitted against each other and him by China. He thus grew his army, and it’s horses, not so much by growth as by assimilation. He also conquered China’s major horse breeding area as well. This policy continued, with him and his decendants assimilating others into their army, targeting especially all nomadic, horse breeding areas. He also converted large areas of China into horse breeding territory since it was now devoid of people.
In the new, Mongol dominated China, the earliest Mongols told the Chinese artists that all they wanted was pictures of horses.