The last ice age

Jul 03, 2014

A team of scientists has discovered that a giant 'burp' of carbon dioxide (CO2) from the North Pacific Ocean helped trigger the end of last ice age, around 17,000 years ago.

A recent study, led by Dr James Rae of the University of St Andrews, found that changes in in the North Pacific caused a massive 'burp' of CO2 to be released from the deep into the atmosphere, helping to warm the planet sufficiently to trigger the end of the .

Previously, scientists have suggested that the Antarctic Ocean and North Atlantic were the only places likely to release deglacial CO2, due to their formation. However, a change in rainfall over the North Pacific region, caused by the East Asian monsoon and the Westerly storm track, made the ocean surface saltier and less buoyant, allowing it to form deep water. This allowed CO2 stored in the deep Pacific to be released to the atmosphere, where it helped warm the planet and melt back the ice sheets that covered much of the Northern Hemisphere.

Dr James Rae, of the University's Department of Earth and Environmental Sciences, explained:

"Our study shows that North Pacific deep water penetrated all the way into the deep ocean, allowing it to release CO2. We tested this idea further with a climate model, which showed that deep water formation in the North Pacific causes ocean CO2 release, large enough to drive the atmospheric CO2 rise recorded at the start of the deglaciation.

The results of our study came as a big surprise, as we were expecting to see a signature of CO2 release from the ocean around Antarctica, which has been the leading hypothesis for deglacial CO2 rise. Instead we found a signal we can only explain with CO2 release from the North Pacific."

The team of scientists from the University of St Andrews, University of Bristol and University of Kiel, Germany, made a series of chemical measurements on minuscule fossil shells to trace ocean CO2 storage and circulation patterns up to two miles beneath the ocean's surface.

Dr Gavin Foster, of the University of Southampton, added; "This study is only really possible thanks to new developments in geochemistry, that allow us to reconstruct the pH of the ocean in the past for the first time, giving an accurate measurement of how ocean CO2 is stored and released".

The new findings will help scientists understand how the earth's climate can operate, and the different ways in which the ocean and atmosphere can exchange CO2.

Dr Rae concluded:

"Although the CO2 rise caused by this process was dramatic in geological terms, it happened very slowly compared to modern man-made CO2 rise. Humans have driven CO2 rise in the atmosphere as large as the CO2 rise that helped end the last ice age, but the man-made CO2 rise has happened 100 times faster. This will have a huge effect on the climate system, and one that we are only just starting to see."

Explore further: Detecting the oceanic CO2 sink today and in the future

More information: Rae, J. W. B., M. Sarnthein, G. L. Foster, A. Ridgwell, P. M. Grootes, and T. Elliott (2014), "Deep water formation in the North Pacific and deglacial CO2 rise," Paleoceanography, 29, DOI: 10.1002/2013PA002570.

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User comments : 33

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antigoracle
1.6 / 5 (20) Jul 03, 2014
The absurdities that the AGW Cult propose as "science" just to support their CO2 lie.
Ignore all existing science of the ice-ages, as they did with the MWP, just as long as their computer models "proves it".
Cultist behavior to its core.
Welcome to AGW Scientology.
Canute
3.4 / 5 (5) Jul 03, 2014
What happened to the obliquity and procession of the ECLIPTIC being the trigger for the end of the ice age?
runrig
4.6 / 5 (10) Jul 03, 2014
What happened to the obliquity and procession of the ECLIPTIC being the trigger for the end of the ice age?

Nothing .... But CO2 release from the oceans follows. This study just points at it coming from the N Atlantic as well as elsewhere.
supamark23
3.9 / 5 (15) Jul 03, 2014
The absurdities that the AGW Cult propose as "science" just to support their CO2 lie.
Ignore all existing science of the ice-ages, as they did with the MWP, just as long as their computer models "proves it".
Cultist behavior to its core.
Welcome to AGW Scientology.


You know, I enjoy the articles on this site but then a dumbfcuk like you has to sh!t in the punchbowl with your incredibly stupid trolling. recent research suggests that trolls like you are actually sadists - I bet your parents wish they'd not had any children looking at how you turned out.
antigoracle
1.8 / 5 (16) Jul 03, 2014
Awwww... you must really like the pretty pictures, since you lack the intelligence to read, far less comprehend and analyze.
strangedays
3.6 / 5 (12) Jul 03, 2014
Oh look - the five year old is back on the prowl - such substantive contributions goracle.
Bob75
not rated yet Jul 04, 2014
I assume there is a major typo: "Antarctic Ocean and North Atlantic" ? Should it be Arctic Ocean. Or they could clarify - the southern Pacific, Indian, and Atlantic oceans near Antarctica.
Caliban
4.1 / 5 (13) Jul 04, 2014
The absurdities that the AGW Cult propose as "science" just to support their CO2 lie.
Ignore all existing science of the ice-ages, as they did with the MWP, just as long as their computer models "proves it".
Cultist behavior to its core.
Welcome to AGW Scientology.


It says right in the article that this research was conducted first:

The team of scientists from the University of St Andrews, University of Bristol and University of Kiel, Germany, made a series of chemical measurements on minuscule fossil shells to trace ocean CO2 storage and circulation patterns up to two miles beneath the ocean's surface.


You'd better retrieve your comprehension from out of your diaper, auntiegriselda, before Nursie arrives to change it for you, and rob what little you have remaining of it, with all those psychotropic meds the good doctors have prescribed to control your profoundly dysfunctional
behavior syndrome.


antigoracle
1 / 5 (13) Jul 06, 2014
How about, since the last 4 ice ages CO2 levels trailed temperature by 800 years.
http://upload.wik....svg.png

How about I retrieve you from my diaper and you try and educate yourself.
runrig
5 / 5 (11) Jul 06, 2014
How about, since the last 4 ice ages CO2 levels trailed temperature by 800 years.
http://upload.wik....svg.png

How about I retrieve you from my diaper and you try and educate yourself.

Anti we call them nappies here and you've just spoiled yours again....
CO2 rise back then did lag temps, that's because without us, they naturally do, as CO2 leaks from the Oceans.
However Mankind is NOT natural to Earth processes and in his wisdom has increased GHG levels in the atmosphere by >40% since pre-industrial times.
Simple, empirically proved physics of GHG's known of for ~150 years makes rising heat-retention unarguable. As observations proves. QED my friend and you can deny till the cows come home ... doesn't make it so.
Caliban
4.4 / 5 (7) Jul 06, 2014
How about, since the last 4 ice ages CO2 levels trailed temperature by 800 years.
http://upload.wik....svg.png

How about I retrieve you from my diaper and you try and educate yourself.


Alas, auntiegriselda- you've missed your one and only chance to do so by weeks, now. I already told you that my diaper audit was completed without mishap some time ago now.

I fear you are confused.

But fear not, Nursie will be along very soon to change that diaper you seem to be so concerned about losing you comprehension in, and will also -thanfully-- administer your meds at that time.

That should provide at least temporary relief of your confusion.

ryggesogn2
1 / 5 (11) Jul 06, 2014
Mankind is NOT natural to Earth processes

Of course we are.
mbee1
1 / 5 (12) Jul 06, 2014
What this story neglects to mention is the rise was after the ice melted which is what happens to your coca cola as it warms, the CO2 dissolved in the water comes out of suspension, It was already warm for it to come out of suspension so the burp did not do anything except give a slight rise to CO2 levels. CO2 did not melt the glaciers some other driver did which was most likely solar gain which dispite all the AGW claims of steady state, is not steady state.
mbee1
1 / 5 (12) Jul 06, 2014
I see the AGW crowd is going at it again turning the facts on their heads to make thier unproven claims sound good. CO2 levels currently and for the last 100 some odd years do not correlate with climate change. The Mauna loa study by NOAA since 1959 says that as does any reading of the giss data set. For example, from 1880 to 1915 world temperatures fell as CO2 rose, from 1940 to 1980 world temperatures stay the same on average as CO2 rose, from 1998 to the present world temperatures per the IPCC, no less, did not rise as CO2 levels rose, there is zero correlation between CO2 levels and climate change. If you look up the NOAA temperature plotter and put in 1998 to 2014 the average temperature fell in the US. The hottest temperature on record from 1895 to 2014 is 1936. Your
AGW theory is disproved by the record.
antigoracle
1 / 5 (13) Jul 07, 2014
CO2 rise back then did lag temps, that's because without us, they naturally do, as CO2 leaks from the Oceans.
However Mankind is NOT natural to Earth processes and in his wisdom has increased GHG levels in the atmosphere by >40% since pre-industrial times.
Simple, empirically proved physics of GHG's known of for ~150 years makes rising heat-retention unarguable. As observations proves. QED my friend and you can deny till the cows come home ... doesn't make it so.

There you go again rig, blindly singing from the cult's hymn book.
The data, from the last 4 ice ages, not only show CO2 lagging temperature by 800 years, but it getting hotter while CO2 is dropping. So how is CO2 the trigger for the end of the ice age?
runrig
5 / 5 (9) Jul 07, 2014
Mankind is NOT natural to Earth processes

Of course we are.


What?????????????????????/
Now, I've often wondered ryggy - but that takes the biscuit (or cookie as you say there).
ryggesogn2
1.3 / 5 (13) Jul 07, 2014
Does rummy believe humans were planted by an aliens or we ARE an alien life form to earth or that God created man to be separate from earth?
If you believe the science, humans evolved in the earth's system and are therefore a part of the earths systems.
How can humans do or be anything un-natural when humans are IN nature and a part of nature?
Vietvet
5 / 5 (10) Jul 07, 2014
Does rummy believe humans were planted by an aliens or we ARE an alien life form to earth or that God created man to be separate from earth?
If you believe the science, humans evolved in the earth's system and are therefore a part of the earths systems.
How can humans do or be anything un-natural when humans are IN nature and a part of nature?


It's simple riggy. We don't live with nature, we are destroying it.
ryggesogn2
1 / 5 (12) Jul 07, 2014
We don't live with nature,

Of course we live IN nature so we must be living with nature.
So much arrogance that humans can destroy nature.
How many fireworks shows were destroyed by nature over the 4th due to a hurricane?
Then there are the volcanoes like Vesuvius, Pinatubo, St. Helens, .....earthquakes, floods, tornadoes, typhoons, tsunamis, glaciers, droughts, ......

AGWites should all sign up for 'Naked and Afraid' and see how nice Nature is.
runrig
5 / 5 (9) Jul 07, 2014
ryggy needs it spells out'''
So much arrogance that humans can destroy nature.

Of course we can you bl***y tart.

Natural is something that belongs on the planet and that responds to conditions on the planet.
Comprende?
NOT a parasite that takes and bespoils the planet for want of money and wants to keep it that way because of selfishness.

NATURAL responds to nature.... because it HAS to it is directed by the planetary environment. That is what GHG's in our atmosphere USED to be governed by. Natural is not intelligent (? are we really) it does not go along it's own sweet path doing what it wants without change. FFS squared ryggy you are beyond strange.
ryggesogn2
1 / 5 (12) Jul 07, 2014
Now we see how the AGWite faith begins, Nature worship.
antigoracle
1 / 5 (12) Jul 07, 2014
Al "Noah" Gore, will save them from the flood.
supamark23
5 / 5 (9) Jul 07, 2014
What this story neglects to mention is the rise was after the ice melted which is what happens to your coca cola as it warms, the CO2 dissolved in the water comes out of suspension, It was already warm for it to come out of suspension so the burp did not do anything except give a slight rise to CO2 levels. CO2 did not melt the glaciers some other driver did which was most likely solar gain which dispite all the AGW claims of steady state, is not steady state.


Holy crap you're stupid.
runrig
5 / 5 (9) Jul 07, 2014
Now we see how the AGWite faith begins, Nature worship.


Faith is belief without evidence my friend. We have science as evidence - you have just your desperate need for the science to be wrong. "nature worship"? What are you on??.
As usual you invert the world to justify you own bizarre psychology.
antigoracle
1 / 5 (10) Jul 08, 2014
So tell us what your "science" says, if everything your cult wants to curb CO2 is done.
Would that stop the glaciers and ice sheets from melting?
Captain Stumpy
5 / 5 (8) Jul 08, 2014
So tell us what your "science" says, if everything your cult wants to curb CO2 is done.
Would that stop the glaciers and ice sheets from melting?
@aunti-g
Thermodynamics posted this earlier, but it is very relevant!
Bounty:
http://dialogueso...nge.html

All you have to do is go to this page, prove that AGW is incorrect and win $30,000.
So, all of you who can prove AGW is wrong (by falsifying it) can pick up your loot.
Here is the opportunity for you to take your pet view and WIN.
now is your chance aunti-g

show us how its done!
make the money and the fame!

antigoracle
1 / 5 (9) Jul 08, 2014
Hey stunty, I would make this wager with you, but you lack the intelligence to comprehend the proof.
thermodynamics
5 / 5 (7) Jul 08, 2014
Hey stunty, I would make this wager with you, but you lack the intelligence to comprehend the proof.


And, yet, you lack the back bone to enter your solution in the contest where you risk nothing and can win $30K.

http://dialogueso...nge.html

All you have to do is show them your proof that AGW is wrong and you win.

Why would you not do that if you have a proof (as you claim you do)?

Because you have lied and you don't even understand the science enough to put an entry together.
Captain Stumpy
5 / 5 (8) Jul 09, 2014
Hey stunty, I would make this wager with you, but you lack the intelligence to comprehend the proof.
@anti-G
you are not proving a thing to ME...
http://dialogueso...nge.html

So far, out of the last 100 posts to PO, you've offered NOTHING OF VALUE, not even to other trolls

Your posts only show the following:
You're threatened by intelligence (likely because of a failure to achieve anything of merit in life, or to gain any kind of degree- includes high school)

you are completely incapable of providing ANY scientific evidence falsifying AGW (likely tied to your failure to obtain a basic education)

you are likely educated on the streets or even in prison and submissive in real life- using anonymity to lash out as you are unable to in reality

you are more likely to be incarcerated than educated or even married due to emasculated behavior shown here on PO

you don't understand science

prove me wrong
falsify AGW
antigoracle
1 / 5 (9) Jul 09, 2014
ryggesogn2
1 / 5 (9) Jul 09, 2014
We have science as evidence

The 'science', GLOBAL CLIMATE MODEL predictions, not matching observations.
GLOBAL CLIMATE MODEL falsified.
If you make excuses for the GLOBAL CLIMATE MODEL, you have faith the GLOBAL CLIMATE MODEL is correct, in spite of contrary evidence.
runrig
5 / 5 (7) Jul 09, 2014
We have science as evidence

The 'science', GLOBAL CLIMATE MODEL predictions, not matching observations.
GLOBAL CLIMATE MODEL falsified.
If you make excuses for the GLOBAL CLIMATE MODEL, you have faith the GLOBAL CLIMATE MODEL is correct, in spite of contrary evidence.

I say until the cows come home ryggy ... ignorant does not win.
Not on this planet. At this time.
it takes those with sense and knowledge to uphold what mankind has achieved this last 2k years.
You of course abhor knowledge and the knowledgeable.

You may as well be in Syria/Iraq with an AK47 in your hand shouting death to the infidels. off with their heads"
They and you are a mere retard in human nature.
A complete and utter negative to civilisation.

It is NOT the models -they are just the slide rule giving error bounds to the unarguable fact that CO2 delays IR from escaping Earth and therefore by the SB law we get hotter.
Like I said you dont do physics ... so stick to the ant-socialist bollocks, eh?
Captain Stumpy
5 / 5 (6) Jul 09, 2014
We have science as evidence

The 'science', GLOBAL CLIMATE MODEL predictions, not matching observations.
GLOBAL CLIMATE MODEL falsified.
If you make excuses for the GLOBAL CLIMATE MODEL, you have faith the GLOBAL CLIMATE MODEL is correct, in spite of contrary evidence.

https://www.youtu...2NVTYRXU
@Ryggy
@anti-g

well?
GO TO THE SITE AND PROVE IT TO COLLECT YOUR MONEY!
http://dialogueso...nge.html

you think you've proved something
then go to the site!

remember what the site said: you don't have to be original, but you do have to be first.
if someone else uses your posts then you lose and they get rich...
and you can't use the bragging rights!

BETTER HURRY....