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twilyth
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Will rising sea levels increase volcanism?

If arctic ice is really melting at an accelerated pace and sea levels will be rising dramatically in the coming years or decades, then shouldn't that redistribution of weight on the earth's crust cause all sorts of tectonic havoc?

In particular, with weight being shifted away from the poles, won't there be increased stress on the earth's crust in places where volcanic activity has gone dormant or is present but at nominal levels and won't that increase the likelihood of volcanic eruptions.

Take Yellowstone for example. Scientists have noticed rising ground levels in the area of an ancient caldera. Couldn't increased pressure in the Atlantic and Pacific push the crust down into the mantle and cause magma to be directed to potential hot spots.

However if we do get more volcanism, won't that at least temporarily stave off global warming? For several years after the eruption of Mount Pinatubo, sea levels did not rise at all. The belief is that the increase in sulfur dioxide - and anti-greenhouse gas that reflects sunlight back into space - counteracted the increasing levels of carbon dioxide.

And if all of this is true, doesn't it suggest that earth's climate might have more of an ability to self-regulate than anyone is giving it credit for?
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[May 12, 2007 4:14:25 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Sekerob
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Re: Will rising sea levels increase volcanism?

Pity you did not append it to the 'Greenies ' thread. I'm living right on the fringe of an earthquake area, volcanoes, 3 active not far from here and spewing and rumbling presently, so expect a shaker in the near future.

Where a removal of miles of ice on land surface would potentially change pressure on known fault areas around e.g. Greenland and the Antarctic, never come across any studies that have correlated ice age movement and volcanic and tectonic activity. Find us some papers by respected experts discussing this would be helpful for the interested to read up on this.

Why would anyone think that there is some super formula that ensures weather equilibrium? 'Nuclear' winter called off by natural events or human action.... who knows.
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[May 12, 2007 6:16:04 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Will rising sea levels increase volcanism?

I think even a large sea rise would be insignificant compared to tidal forces. This isn't a scientific opinion, of course....
[May 12, 2007 1:28:07 PM]   Link   Report threatening or abusive post: please login first  Go to top 
twilyth
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Re: Will rising sea levels increase volcanism?

I started a new thread because I didn't want to necessarily talk about whether or not global warming is happening and what we should or shouldn't be doing about it. I was hoping it would be more of an debate than an argument. But it could have fit in nicely there I suppose.

I'll try to do a little more research and post anything interesting, but I don't think it's something people are looking at right now - maybe because there isn't anything to it, maybe it's too obvious for anyone to see, maybe . . . . who knows.

I was also hoping to get some thoughts on self-regulation. For example, I remember reading something about climate studies done on 9/11 when all the jets were grounded. The impact on the amount of sunlight getting through - without all the contrails we normally have from jets - was amazing. So to extend the idea, if the climate becomes hotter, wouldn't we have more cloud cover and wouldn't that help to reflect more light back into space? I know some climate models take this into consideration, but I don't have the scientific background to understand the analysis that goes into these models.
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[May 12, 2007 1:30:12 PM]   Link   Report threatening or abusive post: please login first  Go to top 
twilyth
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Re: Will rising sea levels increase volcanism?

I think even a large sea rise would be insignificant compared to tidal forces. This isn't a scientific opinion, of course....

Maybe I don't know what you mean by tidal forces, but wouldn't those be transient - changing day by day, month by month? I don't think something transient would generate the large persistent stresses you need to alter the earth's crust and possibly the flow of magma in the mantle.

However a transient force would be enough to trigger something that had already been set in motion by other forces.
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[May 12, 2007 1:33:35 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Will rising sea levels increase volcanism?

I've seen a documentary on Discovery or NGC about a supervulcano at Yellowstone and what might happen if it may errupt.
http://www.livescience.com/environment/070307_yellowstone_shape.html
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Re: Will rising sea levels increase volcanism?

What would happen to Yogi and Boo Boo ?
[May 12, 2007 3:12:12 PM]   Link   Report threatening or abusive post: please login first  Go to top 
twilyth
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Re: Will rising sea levels increase volcanism?

What would happen to Yogi and Boo Boo ?


Depending on where in Jellystone they were, they'd probably be blasted into orbit. Bears in space - what would Stephen Colbert say?

Although since cartoon characters actually exist in a parallel dimension where normal physical laws do not apply, it's hard to say.

For an introduction to cartoon physics see Laws of Cartoon Physics

Here's summary

I: Any body suspended in space will remain in space until made aware of its situation.
II: Any body in motion will tend to remain in motion until solid matter intervenes suddenly.
III: Any body passing through solid matter will leave a perforation conforming to its perimeter.
IV: The time required for an object to fall twenty stories is greater than or equal to the time it takes for whoever knocked it off the ledge to spiral down twenty flights to attempt to capture it unbroken.
V: All principles of gravity are negated by fear.
VI: As speed increases, objects can be in several places at once.
VII: Certain bodies can pass through solid walls painted to resemble tunnel entrances; others cannot.
VIII: Any violent rearrangement of feline matter is impermanent.
IX: Everything falls faster than an anvil.
X: For every vengeance there is an equal and opposite revengeance.
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[Edit 1 times, last edit by twilyth at May 12, 2007 5:52:43 PM]
[May 12, 2007 5:46:12 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Will rising sea levels increase volcanism?

Lol ! laughing
[May 15, 2007 5:58:58 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Sekerob
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Re: Will rising sea levels increase volcanism?

The Maharishi Yogi made no Boo Boo..... he got to get his followers to contribute enough money for him to procure a parking lot full of Rolls Royce and live transcendentally happy for ever.
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