Volcanic eruptions lead to mini-Ice Age

SaltwaterServr

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http://www.dailymail.co.uk/sciencet...arth-late-19th-century.html?ito=feeds-newsxml

Four huge volcanic eruptions triggered a 'Little Ice Age' that cooled earth for hundreds of years until the late 19th century, say scientists.
The period of cooling led to famous events such as people ice skating on the River Thames.
A study at the University of Colorado analysed sediment cores, vegetation and ice, and revealed that four massive tropical volcanic eruptions between 1275 and 1300AD triggered the period of cooling.



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Worth noting:

The model showed that sustained cooling from volcanoes would have sent some of the expanding Arctic sea ice down along the eastern coast of Greenland until it eventually melted in the North Atlantic.

Since sea ice contains almost no salt, when it melted the surface water became less dense, preventing it from mixing with deeper North Atlantic water.

That's effectively what we have happening now to the Arctic and Antarctic ice sheets, they're melting, causing eventual loss of heat to the northern and southern latitudes. Whether you believe in global warming or not, its happening, the ice melting that is.

What's interesting is that there is an interesting theory out there floating around in the ether that global warming may become global cooling in as little as 50-75 years from now. If the so-called global conveyor belt of warm water and cold water flow patterns in the Atlantic are disrupted as it surely will happen, you have a chance for the extreme northern and southern latitudes to experience a lack of warm water return. You could end up with glacier growth, off-setting carbon dioxide's effects to the atmosphere.

It's a pretty interesting feedback loop that some climatologists say could mitigate the green house effect, or provide an amplification scenario whereby Mother Nature overshoots things a bit and we end up colder than we guess, but then return back to hotter.
 

YosemiteSam

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Who gives a ****! The world is going to flip and go into complete chaos on Dec. 12th. If you think global warming / cooling is bad! Just wait for this to happen. Days as we know it will cease to exist! :lmao2:

Seriously though. People who don't believe are dumb. The world has had many many ice ages. Some mini, some on a grand scale. It's not like it's going to just stop happening.

At one point, New York City was under a glacier over a mile thick. I doubt it will be the last time it is. Ever wonder how the Hudson river was created? :)
 

Yeagermeister

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Sam I Am;4401106 said:
Who gives a ****! The world is going to flip and go into complete chaos on Dec. 12th. If you think global warming / cooling is bad! Just wait for this to happen. Days as we know it will cease to exist! :lmao2:

Seriously though. People who don't believe are dumb. The world has had many many ice ages. Some mini, some on a grand scale. It's not like it's going to just stop happening.

At one point, New York City was under a glacier over a mile thick. I doubt it will be the last time it is. Ever wonder how the Hudson river was created? :)

It is man made like Central Park :laugh1:
 

CowboyMcCoy

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Sam I Am;4401106 said:
Who gives a ****! The world is going to flip and go into complete chaos on Dec. 12th. If you think global warming / cooling is bad! Just wait for this to happen. Days as we know it will cease to exist! :lmao2:

Seriously though. People who don't believe are dumb. The world has had many many ice ages. Some mini, some on a grand scale. It's not like it's going to just stop happening.

At one point, New York City was under a glacier over a mile thick. I doubt it will be the last time it is. Ever wonder how the Hudson river was created? :)

Most people believe the dude making the calendar died.
 

YosemiteSam

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Yeagermeister;4401114 said:
It is man made like Central Park :laugh1:

lol, the education system in Tennessee must really suck! :laugh2:
 

YosemiteSam

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CowboyMcCoy;4401117 said:
Most people believe the dude making the calendar died.

:confused: Are you referring to the Mayan calender? Even if you are, I'm not sure of your point. (even if it's a joke hah)
 

burmafrd

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Every time I ask a MMGWF what caused the last ice age and the warming after that; since man was not around; they refuse to answer.
 

Doomsday101

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Sam I Am;4401106 said:
Who gives a ****! The world is going to flip and go into complete chaos on Dec. 12th. If you think global warming / cooling is bad! Just wait for this to happen. Days as we know it will cease to exist! :lmao2:

Seriously though. People who don't believe are dumb. The world has had many many ice ages. Some mini, some on a grand scale. It's not like it's going to just stop happening.

At one point, New York City was under a glacier over a mile thick. I doubt it will be the last time it is. Ever wonder how the Hudson river was created? :)

Dec 21st not the 12th get it right. :laugh2:
 

zrinkill

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Brainpaint is gonna hit this thread with the fury of nature itself.
 

Cythim

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burmafrd;4401213 said:
Every time I ask a MMGWF what caused the last ice age and the warming after that; since man was not around; they refuse to answer.

http://www.pbs.org/wgbh/nova/earth/cause-ice-age.html

"Although the exact causes for ice ages, and the glacial cycles within them, have not been proven, they are most likely the result of a complicated dynamic interaction between such things as solar output, distance of the Earth from the sun, position and height of the continents, ocean circulation, and the composition of the atmosphere."

Nature has caused these cycles though out the life of the Earth, but there has been no significant natural event to coincide with the sudden increase in temperature over the last century. The problem is humans are causing it to happen much sooner than it would have happened naturally.
 

YosemiteSam

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burmafrd;4401213 said:
Every time I ask a MMGWF what caused the last ice age and the warming after that; since man was not around; they refuse to answer.

Maddened Midget Gelded With a Fork? :omg:

Why in hell would you ask one of them? :laugh2:
 

YosemiteSam

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Doomsday101;4401228 said:
Dec 21st not the 12th get it right. :laugh2:

hah. Maybe I should actually look at the Mayan Calendar. I've never actually looked at it. :laugh2:
 

Doomsday101

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Sam I Am;4401243 said:
hah. Maybe I should actually look at the Mayan Calendar. I've never actually looked at it. :laugh2:

I think you may have an aztec calender and you can't trust theirs. Go Mayan!!!:laugh2:
 

burmafrd

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Cythim;4401240 said:
http://www.pbs.org/wgbh/nova/earth/cause-ice-age.html

"Although the exact causes for ice ages, and the glacial cycles within them, have not been proven, they are most likely the result of a complicated dynamic interaction between such things as solar output, distance of the Earth from the sun, position and height of the continents, ocean circulation, and the composition of the atmosphere."

Nature has caused these cycles though out the life of the Earth, but there has been no significant natural event to coincide with the sudden increase in temperature over the last century. The problem is humans are causing it to happen much sooner than it would have happened naturally.


How do they know what caused the other events? They don't. But they are so sure they know what is causing this one. TOTAL BS.
Its all a political agenda; nothing more.
 

Cythim

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burmafrd;4401357 said:
How do they know what caused the other events? They don't. But they are so sure they know what is causing this one. TOTAL BS.
Its all a political agenda; nothing more.

They have solid theories on what caused the other events, and they are so sure on what is causing this one because they can actually perform tests while it is happening. You seem to want to ignore the scientific and turn this political, so this is where I will stop my end of the discussion.
 

kmp77

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burmafrd;4401213 said:
Every time I ask a MMGWF what caused the last ice age and the warming after that; since man was not around; they refuse to answer.

Those people generally believe this planet was put here specifically for us and that this is a perfect planet. They refuse to look at the big picture that this planet once was chaos, went through many changes, and that this planet will die when the sun burns out. We'll probably die off way before then though and when the 2nd set of human type beings come along, they'll find dinosaurs, then human like bones (us) and wonder what the heck came before them.
 

burmafrd

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Cythim;4401382 said:
They have solid theories on what caused the other events, and they are so sure on what is causing this one because they can actually perform tests while it is happening. You seem to want to ignore the scientific and turn this political, so this is where I will stop my end of the discussion.


you seem to happily lap up what is spouted by people who clearly have an agenda.

Perform tests. Now that is a laugh.

This planet is billions of years old. They are so arrogant that they think they know how things work?

I call BS.
 

SaltwaterServr

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burmafrd;4401395 said:
you seem to happily lap up what is spouted by people who clearly have an agenda.

Perform tests. Now that is a laugh.

This planet is billions of years old. They are so arrogant that they think they know how things work?

I call BS.

:lmao2:

The human body is the most complex system on the planet. Damn those doctors for thinking they have any idea how any of it works.

A blanket statement of "how things work" is pretty telling. You break down the systems to the simple elements, understand those elements, and reconstruct the puzzle from the ground up. You don't look at the thing in totality until you figure out the basic workings of climatology, geology, paleobotany, paleontology, local cosmology, etc.

People much, much smarter than us look at the evidence the Earth has trapped in various ways and reconstruct what happened from that. Same way any mystery is solved. Look at the evidence, work backwards.

If ice cores show an elevated amount of CO2 in the atmosphere, reduced pollen, elevated hydrogen sulfide, and pumice; and then you find the same thing in soil layers by chemical extraction methods there's pretty much only ONE thing on Earth that can produce a climatological effect that can leave behind that evidence. A volcano.

How do we know? Because we can look at ice cores of major eruptions like the one that occurred last year in Iceland and see the evidence it leaves behind.

The Earth is not a static system, but the processes working on the Earth have been the same since it coalesced from dust. If the same thief leaves the same clues, it's pretty simple to figure out what the thief is doing and who he is given enough time.

We've got billions of years of evidence.

Scientists are not idiots.
 

CowboyMcCoy

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Sam I Am;4401122 said:
:confused: Are you referring to the Mayan calender? Even if you are, I'm not sure of your point. (even if it's a joke hah)

Yes, I was indeed joking about the Mayan calendar. But that is a speculative idea I heard from an educated person. I haven't studied the topic in depth. I do give the Mayans a lot of credit because they were before their time. But to say they had some crystal ball and the calendar would be the end of the world is just stupid. I haven't studied enough about the Mayans to know if that was something they really believed or rather something that subsequent eras speculated about.
 
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