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Science, Inventions & Space Discuss Shock as retreat of Arctic sea ice releases deadly greenhouse gas at the General Discussion; " Russian research team astonished after finding 'fountains' of methane bubbling to surface Dramatic and unprecedented plumes of methane ...

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Old 12-13-2011, 09:40 PM
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Default Shock as retreat of Arctic sea ice releases deadly greenhouse gas

"Russian research team astonished after finding 'fountains' of methane bubbling to surface

Dramatic and unprecedented plumes of methane a greenhouse gas 20 times more potent than carbon dioxide have been seen bubbling to the surface of the Arctic Ocean by scientists undertaking an extensive survey of the region.

The scale and volume of the methane release has astonished the head of the Russian research team who has been surveying the seabed of the East Siberian Arctic Shelf off northern Russia for nearly 20 years.

In an exclusive interview with The Independent, Igor Semiletov, of the Far Eastern branch of the Russian Academy of Sciences, said that he has never before witnessed the scale and force of the methane being released from beneath the Arctic seabed.

"Earlier we found torch-like structures like this but they were only tens of metres in diameter. This is the first time that we've found continuous, powerful and impressive seeping structures, more than 1,000 metres in diameter. It's amazing," Dr Semiletov said. "I was most impressed by the sheer scale and high density of the plumes. Over a relatively small area we found more than 100, but over a wider area there should be thousands of them."

Scientists estimate that there are hundreds of millions of tonnes of methane gas locked away beneath the Arctic permafrost, which extends from the mainland into the seabed of the relatively shallow sea of the East Siberian Arctic Shelf. One of the greatest fears is that with the disappearance of the Arctic sea-ice in summer, and rapidly rising temperatures across the entire region, which are already melting the Siberian permafrost, the trapped methane could be suddenly released into the atmosphere leading to rapid and severe climate change.

Dr Semiletov's team published a study in 2010 estimating that the methane emissions from this region were about eight million tonnes a year, but the latest expedition suggests this is a significant underestimate of the phenomenon.

In late summer, the Russian research vessel Academician Lavrentiev conducted an extensive survey of about 10,000 square miles of sea off the East Siberian coast. Scientists deployed four highly sensitive instruments, both seismic and acoustic, to monitor the "fountains" or plumes of methane bubbles rising to the sea surface from beneath the seabed.

"In a very small area, less than 10,000 square miles, we have counted more than 100 fountains, or torch-like structures, bubbling through the water column and injected directly into the atmosphere from the seabed," Dr Semiletov said. "We carried out checks at about 115 stationary points and discovered methane fields of a fantastic scale I think on a scale not seen before. Some plumes were a kilometre or more wide and the emissions went directly into the atmosphere the concentration was a hundred times higher than normal."

Dr Semiletov released his findings for the first time last week at the American Geophysical Union meeting in San Francisco."

Shock as retreat of Arctic sea ice releases deadly greenhouse gas - Climate Change - Environment - The Independent

Hmmmmmmm..........
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Old 12-14-2011, 02:52 AM
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Default Re: Shock as retreat of Arctic sea ice releases deadly greenhouse gas

The culprits are many...

762nato - "Liberals"
tristanrobin- "Conservatives"
saltwn - "Reagan"
Manitou - "Homos"
skrekk - "Homophobes & Prop H8ers"
1069 - "Christians"
Mikeyy - "Jews"
The silenced majority - "Everyone except Ron Paul"

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Old 12-14-2011, 05:23 AM
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Default Re: Shock as retreat of Arctic sea ice releases deadly greenhouse gas

Quote:
Originally Posted by OldMercsRule View Post
"Russian research team astonished after finding 'fountains' of methane bubbling to surface

Dramatic and unprecedented plumes of methane – a greenhouse gas 20 times more potent than carbon dioxide – have been seen bubbling to the surface of the Arctic Ocean by scientists undertaking an extensive survey of the region.

The scale and volume of the methane release has astonished the head of the Russian research team who has been surveying the seabed of the East Siberian Arctic Shelf off northern Russia for nearly 20 years.

In an exclusive interview with The Independent, Igor Semiletov, of the Far Eastern branch of the Russian Academy of Sciences, said that he has never before witnessed the scale and force of the methane being released from beneath the Arctic seabed.

"Earlier we found torch-like structures like this but they were only tens of metres in diameter. This is the first time that we've found continuous, powerful and impressive seeping structures, more than 1,000 metres in diameter. It's amazing," Dr Semiletov said. "I was most impressed by the sheer scale and high density of the plumes. Over a relatively small area we found more than 100, but over a wider area there should be thousands of them."

Scientists estimate that there are hundreds of millions of tonnes of methane gas locked away beneath the Arctic permafrost, which extends from the mainland into the seabed of the relatively shallow sea of the East Siberian Arctic Shelf. One of the greatest fears is that with the disappearance of the Arctic sea-ice in summer, and rapidly rising temperatures across the entire region, which are already melting the Siberian permafrost, the trapped methane could be suddenly released into the atmosphere leading to rapid and severe climate change.

Dr Semiletov's team published a study in 2010 estimating that the methane emissions from this region were about eight million tonnes a year, but the latest expedition suggests this is a significant underestimate of the phenomenon.

In late summer, the Russian research vessel Academician Lavrentiev conducted an extensive survey of about 10,000 square miles of sea off the East Siberian coast. Scientists deployed four highly sensitive instruments, both seismic and acoustic, to monitor the "fountains" or plumes of methane bubbles rising to the sea surface from beneath the seabed.

"In a very small area, less than 10,000 square miles, we have counted more than 100 fountains, or torch-like structures, bubbling through the water column and injected directly into the atmosphere from the seabed," Dr Semiletov said. "We carried out checks at about 115 stationary points and discovered methane fields of a fantastic scale – I think on a scale not seen before. Some plumes were a kilometre or more wide and the emissions went directly into the atmosphere – the concentration was a hundred times higher than normal."

Dr Semiletov released his findings for the first time last week at the American Geophysical Union meeting in San Francisco."

Shock as retreat of Arctic sea ice releases deadly greenhouse gas - Climate Change - Environment - The Independent

Hmmmmmmm..........
So maybe we have a window to what happened to our Martian/Atlantian forefathers.


No really look at Mars. Jeeze do we want that? And do we have a choice at this date?
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Old 12-15-2011, 08:07 PM
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Wink Re: Shock as retreat of Arctic sea ice releases deadly greenhouse gas

Uncle Ferd says it's pro'bly comin' from polar bear poop...

Massive methane gas bubbles in Arctic alarm scientists
Thursday 15th December, 2011 - Giant plumes of methane gas, some a kilometre in diameter, have been discovered bubbling to the surface of the Arctic Ocean by Russian scientists, alarming those trying to protect the region.
Quote:
Scientists are concerned that as the Arctic Shelf recedes, the release of methane, the levels of which are unprecedented, could greatly accelerate global climate change. Methane gas is around 20 times more harmful to the environment and in terms of green house gasses than carbon dioxide.

In a roughly 10,000 square mile area, Igor Semiletov of the Russian Academy of Sciences, said his team found more than 100 "fountains, or torch-like structures, bubbling through the water column and injected directly into the atmosphere from the seabed".

Semiletov, speaking to the UK's Independent newspaper, said he believes there could be thousands of these methane fountains all around the Arctic region, extending from the Russian mainland to the East Siberian Arctic Shelf. "This is the first time that we've found continuous, powerful and impressive seeping structures, more than 1,000 metres in diameter. It's amazing," he said.

Semiletov added that the methane fountains were emitting directly into the atmosphere so that the "concentration was a hundred times higher than normal".

MORE
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Old 12-15-2011, 08:28 PM
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Default Re: Shock as retreat of Arctic sea ice releases deadly greenhouse gas

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Originally Posted by cnredd View Post
The culprits are many...

762nato - "Liberals"
tristanrobin- "Conservatives"
saltwn - "Reagan"
Manitou - "Homos"
skrekk - "Homophobes & Prop H8ers"
1069 - "Christians"
Mikeyy - "Jews"
The silenced majority - "Everyone except Ron Paul"

I blame the ice. If it didn't put up a tougher front against our polluting the atmosphere, we wouldn't have these problems.
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Old 12-15-2011, 08:32 PM
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Default Giant plumes of methane bubbling to surface of Arctic Ocean

Due to the Arctic Shelf receding, an unprecedented amount of methane gas plumes have been popping up, worrying scientists about the potential harm it could cause.

Quote:
Russian scientists have discovered hundreds of plumes of methane gas, some 1,000 meters in diameter, bubbling to the surface of the Arctic Ocean. Scientists are concerned that as the Arctic Shelf recedes, the unprecedented levels of gas released could greatly accelerate global climate change.

Igor Semiletov of the Russian Academy of Sciences tells the UK's Independent that the plumes of methane, a gas 20 times as harmful as carbon dioxide, have shocked scientists who have been studying the region for decades. "Earlier we found torch-like structures like this but they were only tens of meters in diameter," he said. "This is the first time that we've found continuous, powerful and impressive seeping structures, more than 1,000 metres in diameter. It's amazing."

Semiletov said that while his research team has discovered more than 100 plumes, they estimate there to be "thousands" over the wider area, extending from the Russian mainland to the East Siberian Arctic Shelf.

"In a very small area, less than 10,000 square miles, we have counted more than 100 fountains, or torch-like structures, bubbling through the water column and injected directly into the atmosphere from the seabed," Semiletov said. "We carried out checks at about 115 stationary points and discovered methane fields of a fantastic scale I think on a scale not seen before. Some plumes were a kilometer or more wide and the emissions went directly into the atmosphere the concentration was a hundred times higher than normal."
Giant plumes of methane bubbling to surface of Arctic Ocean | The Sideshow - Yahoo! News

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Old 12-15-2011, 08:45 PM
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Default Re: Shock as retreat of Arctic sea ice releases deadly greenhouse gas

[Moderator mode] threads merged due to similarity [/moderator]
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Last edited by saltwn; 12-15-2011 at 09:12 PM..
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Old 12-15-2011, 08:57 PM
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Default Re: Shock as retreat of Arctic sea ice releases deadly greenhouse gas

Quote:
Originally Posted by cnredd View Post
The culprits are many...

762nato - "Liberals"
tristanrobin- "Conservatives"
saltwn - "Reagan"
Manitou - "Homos"
skrekk - "Homophobes & Prop H8ers"
1069 - "Christians"
Mikeyy - "Jews"
The silenced majority - "Everyone except Ron Paul"

No label for me?

I am disappointed. I want a label.
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Old 12-15-2011, 09:02 PM
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Default Re: Shock as retreat of Arctic sea ice releases deadly greenhouse gas

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No label for me?

I am disappointed. I want a label.

How about PW's resident member of the oort cloud?
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Old 12-15-2011, 09:13 PM
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Default Re: Shock as retreat of Arctic sea ice releases deadly greenhouse gas

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How about PW's resident member of the oort cloud?
wha zat mean?out of reach technician?
<<kidding>>
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