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El Niño Events May Tip Nations to War
ScienceNOW ^ | 24 August 2011 | Daniel Strain

Posted on 08/25/2011 3:33:43 PM PDT by neverdem

Enlarge Image
sn-climate.jpg
Climate of violence. El Niño-Southern Oscillation events hold sway over nearly half the nations of the world, many of which have experienced surges in violence during El Niño years.
Credit: Hsiang et al., Nature

Tensions between the Peruvian government and the rebel group the Shining Path erupted into bloody clashes in 1982—the same year that an El Niño-Southern Oscillation (ENSO) event scoured potato fields across the hilly nation. Doomsayers might see cause and effect, but scientists have so far struggled to connect widespread violence with global climate phenomena. Now, a new study suggests that civil strife is twice as likely to break out in many nations worldwide during El Niño years.

"More and more of the evidence is pointing toward a strong link between adverse weather or adverse climate and political violence in the world's poor regions," says Edward Miguel, an economist at the University of California, Berkeley, who was not involved in this study. "This is an important piece of evidence in that debate."

In 2009, Miguel and colleagues published a controversial paper in the Proceedings of the National Academy of Sciences, arguing that spikes in temperature had played a dramatic role in igniting African civil wars. While some scientists criticized the study's statistical methods, many questioned its basic claim, says Solomon Hsiang, lead author of the new study, who studies the confluence of political and climate science at Columbia University. The question, Hsiang says, became, "Is it at all possible that global climate can affect conflict?" Scientists, he adds, don't have the know-how to turn the thermostat up or down on the planet and then sit back to watch how angry people get.

But the planet does flip from hot to cold naturally: every few years as waters in the tropical Pacific cool, during La Niña events, or heat up, during El Niño years. These rapid, periodic shifts in climate, Hsiang and his colleagues realized, might make a good proxy for studying how climate might impact war around the world.

So the team examined 234 clashes each claiming more than 25 lives between governments and rebel groups across the globe from 1950 to 2004. In the tropical nations most affected by ENSO swings, such as Peru, the Sudan, or India, the likelihood of civil violence erupting doubled during El Niño years, from about 3% to 6%, amounting to an extra 48 clashes, the group reports online today in Nature. In nations separated from the steep climatic shifts associated with ENSO events, including the United States, France, and China, the chances of civil strife remained at a steady low of 2%. But just how El Niño events fanned the flames in what were largely the world's poorest nations is unclear, Hsiang says.

Such a relationship between climate swings and political instability seems, at least anecdotally, to have a long history, says Thomas Homer-Dixon, a nature and society researcher at the University of Waterloo in Canada: "What we're seeing is a modern-day manifestation of a phenomenon that goes back millennia." The city of Angkor in modern Cambodia, for instance, known for its web of monsoon-fed irrigation canals, fell to invaders in the mid-15thcentury. A series of droughts began to dry up those famous canals during the same period in history. As Hsiang and colleagues found, those societies most at the whim of climate tended to also be the nations with economies still rooted in agriculture, Homer-Dixon notes.

But Halvard Buhaug, an international relations specialist at the Centre for the Study of Civil War in Oslo and a sharp critic of Miguel's 2009 study, doesn't see cause and effect just yet. "I still believe that socioeconomic and political factors are the most important, common drivers of civil wars," he says. "But the intriguing finding ... certainly deserves further scrutiny." Without knowing how exactly climate swings can lead to violence, if at all, he says, it becomes an uphill battle for humanitarian organizations to direct preventative measures.


TOPICS: Culture/Society; Foreign Affairs; Front Page News; Politics/Elections
KEYWORDS: elnino; elnio; enso; lania; lanina; war
The first link, the abstract, has another PDF link labelled "Free via Open Access."
1 posted on 08/25/2011 3:33:47 PM PDT by neverdem
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To: neverdem

I is a scientist.

I thinks that there be a strong connection between surges in worldwide violence and month names containing the letter R, due to global warming.

Where can I get me a grant to study that?


2 posted on 08/25/2011 3:54:27 PM PDT by Zeppo ("Happy Pony is on - and I'm NOT missing Happy Pony")
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To: wardaddy; Joe Brower; Cannoneer No. 4; Criminal Number 18F; Dan from Michigan; Eaker; Jeff Head; ...
Past time for answers on Operation Fast and Furious

The Affirmative Action President, Yes Barack Obama… (Look at the source!!)

America's Green Quagmire - Obama's energy agenda has been a very expensive failure.

Republican Delusion is Obama's All-Too-Secret Weapon

Some noteworthy articles about politics, foreign or military affairs, IMHO, FReepmail me if you want on or off my list.

3 posted on 08/25/2011 4:01:24 PM PDT by neverdem (Xin loi minh oi)
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To: neverdem

So there you have it: English kills.

Each of those areas of violence have also seen large influxes of English speakers.


4 posted on 08/25/2011 4:07:36 PM PDT by Tzimisce (Never forget that the American Revolution began when the British tried to disarm the colonists.)
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To: Zeppo

On any day that doesn’t end in Y


5 posted on 08/25/2011 4:12:55 PM PDT by fantail 1952 (They don't make 'em like Reagan any more. Now it takes a woman to do a mans job!)
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To: Zeppo
Every year, my neighbor, a University of California at Santa Cruz Ag major and graduate of Brown University has intoned the import of El Nino or La Nina events as the case may be. Every year, I yawn and tell him it's just more grant mongering by a bunch of academic whores.

I have been plotting rainfall amounts on our property for over a decade. There is virtually zero correlation between an El Nino or La Nina year and the amount of rainfall. None. We have had both wet, drought, and average years worth of rainfall during both temperature extremes and moderate ocean temperature years. There may be some relationship between El Nino or La Nina events and weather patterns averaged over decades, but there is no predictive value in any particular year at all. None.

6 posted on 08/25/2011 4:26:38 PM PDT by Carry_Okie (GunWalker: Arming "a civilian national security force that's just as powerful, just as well funded")
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To: neverdem
As Hsiang and colleagues found, those societies most at the whim of climate tended to also be the nations with economies still rooted in agriculture, Homer-Dixon notes.

Well, if farmers can't farm and there's little for anyone to eat then many may more feel the call to battle. Battle against someone. For some reason or other. Maybe the weather swings are a factor in some wars.

7 posted on 08/25/2011 4:28:09 PM PDT by decimon
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To: neverdem
From the BBC from 1997

El Nino here to stay

"It appears that we have a very good case for suggesting that the El Ninos are going to become more frequent, and they're going to become more intense and in a few years, or a decade or so, we'll go into a permanent El Nino. So instead of having cool water periods for a year or two, we'll have El Nino upon El Nino, and that will become the norm. And you'll have an El Nino, that instead of lasting 18 months, lasts 18 years,"

Have they ever been right?

8 posted on 08/25/2011 4:40:33 PM PDT by qam1 (There's been a huge party. All plates and the bottles are empty, all that's left is the bill to pay)
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To: qam1
Have they ever been right?

Worse then broken clocks. We are headed back into a La Nina right now. So that will be 2 back to back La Nina's.

9 posted on 08/25/2011 4:51:16 PM PDT by justa-hairyape
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To: Carry_Okie

Come to Texas and claim this La nina doesn’t affect heat and rain. kalifornia is too close to the action of La and El to see major effects..


10 posted on 08/26/2011 9:49:39 AM PDT by dusttoyou ("Progressives" are wee-weeing all over themselves, Foc nobama)
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To: dusttoyou
Come to Texas and claim this La nina doesn’t affect heat and rain.

Why? My point is that the prognosticators HERE are claiming that oceanic surface temperatures have predictive value when they clearly do not.

11 posted on 08/26/2011 10:40:53 AM PDT by Carry_Okie (GunWalker: Arming "a civilian national security force that's just as powerful, just as well funded")
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To: neverdem

Thanks for the ping!


12 posted on 08/26/2011 11:15:04 AM PDT by Alamo-Girl
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To: neverdem

Correlation does NOT equal Cause and Effect.


13 posted on 08/26/2011 12:01:25 PM PDT by roaddog727 (It's the Constitution, Stupid!)
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To: neverdem

Actually, hot temps alone have been found to increase violence in many sociological contexts.


14 posted on 08/26/2011 12:05:40 PM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: neverdem

Nevertheless, the looming

WWIII is scheduled and scripted by the

same Marxist globalist oligarchy that loves to use wars to help depopulate as well as manipulate the geo-political structure more toward their total overt control of a satanic global world government just as The Bible outlines.


15 posted on 08/26/2011 12:05:49 PM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: Zeppo

I have an old and slightly dented Delphic Oracle that I’m not using. For the right price...


16 posted on 08/26/2011 1:33:31 PM PDT by Inwoodian
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To: neverdem

The climate changes very predictably and very radically every 4 months, in particular there are two 4 month periods in radical temperature changes and other weather phenomena alter radically. Is there a correlation of violence with those changes? If not, then any claim for a correlation with changes that are several orders of magnitude different is pure bullshit.


17 posted on 08/26/2011 1:44:30 PM PDT by catnipman (Cat Nipman: Vote Republican in 2012 and only be called racist one more time!)
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