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n2doc

(47,953 posts)
Sun Aug 24, 2014, 03:36 PM Aug 2014

Hundreds of Methane Plumes Erupting Along East Coast

Source: Livescience/Yahoo

In an unexpected discovery, hundreds of gas plumes bubbling up from the seafloor were spotted during a sweeping survey of the U.S. Atlantic Coast.

Even though ocean explorers have yet to test the gas, the bubbles are almost certainly methane, researchers report today (Aug. 24) in the journal Nature Geoscience.

"We don't know of any explanation that fits as well as methane," said lead study author Adam Skarke, a geologist at Mississippi State University in Mississippi State.

Read more: http://news.yahoo.com/hundreds-methane-plumes-erupting-along-east-coast-170504645.html

34 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Hundreds of Methane Plumes Erupting Along East Coast (Original Post) n2doc Aug 2014 OP
Mermaids farting CAG Aug 2014 #1
A simple yet logical explanation!! Kaleva Aug 2014 #3
Nemo ate beans Kilgore Aug 2014 #4
Mermaids farting AlbertCat Aug 2014 #8
Mermaids pose an imminent threat to the United States. Kaleva Aug 2014 #21
we are officially dead. roguevalley Aug 2014 #14
Global atmospheric warming has slowed down daleo Aug 2014 #2
It's a nice greenhouse gas jakeXT Aug 2014 #5
30 times more heat retaining but lasts decades, not centuries to millennia daleo Aug 2014 #16
Message auto-removed Name removed Aug 2014 #28
Not in this latitude, though. AverageJoe90 Aug 2014 #6
Could also be due to geological activity such as from a fault. cstanleytech Aug 2014 #12
That is definitely a possibility as well, I would suspect. nt AverageJoe90 Aug 2014 #18
It can take years for the ocean depths to warm up. This may be from 90s warmings. nt Bernardo de La Paz Aug 2014 #11
apparently burping bacteria, versus thawing hydrates magical thyme Aug 2014 #7
And Atlantic waters have been warming rapidly at just that depth NickB79 Aug 2014 #32
another positive feedback for global warming magical thyme Aug 2014 #33
One report says defacto7 Aug 2014 #9
This wil be seen as "the writing on the friggin' wall" in the near future drynberg Aug 2014 #10
There is a methane/oxygen/ozone/warming cycle packman Aug 2014 #13
What? Me worry? tea and oranges Aug 2014 #15
I walked out in the sun a couple days ago, Trillo Aug 2014 #17
I feel it too geologic Aug 2014 #19
this may be why.... belltower Aug 2014 #25
Interesting, noticed the same thing this year harun Aug 2014 #34
So Global Weirding; greiner3 Aug 2014 #20
Here it comes .... existential truth folks belltower Aug 2014 #22
Wow, very sobering... drynberg Aug 2014 #29
Siberia has the same methane blow-holes in the Arctic and onland, discovered by farmers. Welibs Aug 2014 #23
the raw story: scientists-alarmed-at-incredible-rate-of-ice-sheet-depletion belltower Aug 2014 #24
We are so screwed. nt tblue37 Aug 2014 #26
Didn't some of those areas have this before? lunasun Aug 2014 #27
:( C Moon Aug 2014 #30
Why can't my Mac play the video...all I get from the link is audio? loudsue Aug 2014 #31
 

AlbertCat

(17,505 posts)
8. Mermaids farting
Sun Aug 24, 2014, 05:11 PM
Aug 2014

Nah.... I'm sure it's just Rush. They're all over the place 'cause he's doctor shopping.

daleo

(21,317 posts)
2. Global atmospheric warming has slowed down
Sun Aug 24, 2014, 03:49 PM
Aug 2014

This is theorized to be because the oceans are absorbing much of the heat. Methane releases from frozen clathrate sources could be related to this heat absorption.

jakeXT

(10,575 posts)
5. It's a nice greenhouse gas
Sun Aug 24, 2014, 04:35 PM
Aug 2014
Methane (CH4) is 30 times stronger than carbon dioxide as an absorber of infrared radiation. Methane, however, is present in smaller concentrations than carbon dioxide, so its net contribution to the greenhouse effect is not as large. Methane is also relatively short-lived (lasting approximately 8 years) in the atmosphere. Methane is produced when bacteria decompose organic plant and animal matter in such places as wetlands (e.g., marshes, mudflats, flooded rice fields), sewage treatment plants, landfills, and the guts of cattle and termites. Scientists are concerned about the concentration of methane increasing in regions where the Arctic and alpine permafrost is thawing and releasing methane as it warms.

http://www.ces.fau.edu/nasa/module-2/how-greenhouse-effect-works.php

daleo

(21,317 posts)
16. 30 times more heat retaining but lasts decades, not centuries to millennia
Sun Aug 24, 2014, 07:30 PM
Aug 2014

Of course it combines in the atmosphere with oxygen, slowly, to yield carbon dioxide.

Response to jakeXT (Reply #5)

 

AverageJoe90

(10,745 posts)
6. Not in this latitude, though.
Sun Aug 24, 2014, 04:37 PM
Aug 2014

Too warm, for one. We are probably looking at another source.....some of it may be mining-related?

 

magical thyme

(14,881 posts)
7. apparently burping bacteria, versus thawing hydrates
Sun Aug 24, 2014, 04:58 PM
Aug 2014

"Most of the methane seeps are in water less than 1,640 feet (500 meters) deep. Most of these shallow methane seeps seem to arise from microbes blurping out methane, the researchers said. The researchers did find some deeper methane vents, at which the ROV Jason glimpsed patches of methane hydrate. This is the icy mix of methane and water that appears when deep ocean pressures and cold temperatures force methane to solidify. Any type of methane gas can form hydrates."

NickB79

(19,276 posts)
32. And Atlantic waters have been warming rapidly at just that depth
Mon Aug 25, 2014, 11:55 AM
Aug 2014
http://www.theguardian.com/environment/2014/aug/21/global-warming-slowdown-answer-lies-in-depths-of-atlantic-study-finds

"A shift in the salinity of the north Atlantic triggered the effect around the turn of the century, the study says, as surface water there became saltier and more dense, sinking and taking surface heat down to depths of more than 300 metres.

Using temperature data from floats across the world, Tung found the Atlantic and Southern Oceans “each account for just under half the global energy storage change since 1999 at below 300m”. The study’s result, he says, does not support the “Pacific-centric” view of earlier work on whether heat is being stored. "

Gee, I wonder what happens when you give methane-generating bacteria warmer water to live in?

drynberg

(1,648 posts)
10. This wil be seen as "the writing on the friggin' wall" in the near future
Sun Aug 24, 2014, 06:37 PM
Aug 2014

We do need to bring on non-polluting energy such as wind, solar, etc., but the earth is functioning with more than 400 ppm of CO2, remember. This effect will continue to increase even if we switched to Green Fuels 100% now, and of course that ain't close to happening. We are living our lives at the expense of future generations (this is no exaggeration or hyperbole) We also need to make plans of survival, as this is gonna happen faster and faster.

 

packman

(16,296 posts)
13. There is a methane/oxygen/ozone/warming cycle
Sun Aug 24, 2014, 06:42 PM
Aug 2014

As more methane is produced (by whatever cause) ,it reacts with ozone - converting it to oxygen which allows more heating of the planet which in turn warms the waters allowing more methane to be produced. Not a cycle of life, but of death.

" The density, i.e; the mass per unit volume of methane is less than that of air (which is a mixture of many gases) Methane react with ozone converting it into oxygen and thus the ultraviolet absorbing power is lost. More percentage of UV rays will reach the earth. Normally about 50% of the UV rays reaching the upper atmosphere are absorbed or reflected back."

Read more here

http://en.wikipedia.org/wiki/Methane

Trillo

(9,154 posts)
17. I walked out in the sun a couple days ago,
Sun Aug 24, 2014, 07:43 PM
Aug 2014

and in the shade it was a fairly normal 86 °F, when in the direct sunshine, it felt like an oven, like the ozone hole was between me and the sun, definitely a radiant heat. I wonder if there's a way to measure radiant heat directly from the sun?

harun

(11,348 posts)
34. Interesting, noticed the same thing this year
Tue Aug 26, 2014, 09:36 AM
Aug 2014

When working outside it wasn't that hot temperature wise, but if the sun was hitting you or you were in the sun forget it. If it was over 80 we were done. Didn't seem like this before. We had to stay in the shade or wait for a cloudy day to do our outside projects.

 

belltower

(74 posts)
22. Here it comes .... existential truth folks
Sun Aug 24, 2014, 10:06 PM
Aug 2014

An excellent summation is below of material from http://arctic-news.blogspot.com/, that clearly states what the timeline is for our extinction, due primarily to abrupt release of geologic AND biologic methane. The video discusses earthquakes along the faults in the Arctic, in some detail, which just may remind you of Bardabunga volcano (thank goodness! it's eruption is not disturbing our flight plans... it's erupting under a 2000 m glacier, whew!)

Anyway, all this is surely to be abundantly clear in time for 2016.

drynberg

(1,648 posts)
29. Wow, very sobering...
Mon Aug 25, 2014, 02:17 AM
Aug 2014

I couldn't see screens after the first 20 min. or so, plus I found nothing at the link of arctic news above. Thanks for posting, this needs to be seen by millions, but perhaps not all, as they are too busy denying reality.

 

Welibs

(188 posts)
23. Siberia has the same methane blow-holes in the Arctic and onland, discovered by farmers.
Sun Aug 24, 2014, 10:09 PM
Aug 2014

I'm thinking if it's the same phenomena there should be blow-holes inland along the coast of the US too. If they can't find any it's likely just a matter of time
before they blow. The Siberian peninsula is deserted but for a few farmers & their herds. The east coast of the US is so heavily populated it's a given that
people are going to get hurt.

http://www.news.com.au/technology/environment/are-siberias-methane-blowholes-the-first-warning-sign-of-unstoppable-climate-change/story-fnjwvztl-1227006746397

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