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FIPC; Matti Lappalainen; Risto Isomaki; Esko Pettay
*Subject:* Re: [geo] Re: Arctic methane workshop: 15-16 October -
Methane vents
Albert
I am vague about release patterns and my ideas are based in the
echo-sounder images in the Shakhova paper. If you
There was a large session on methane at the last Goldschmidt Conf this Aug.
http://www.goldschmidt2011.org/program/programView?period=17cpdf=1
numerous methane papers in other sessions can be found by searching methane
at:
http://www.goldschmidt2011.org/abstracts/abstractSearch
e.g.,
:* Re: [geo] Re: Arctic methane workshop: 15-16 October - Methane
vents
** **
Stuart
This topic arose because Albert said that plastic film would produce anoxic
conditions in the sea bed. The questions is if we leave methane and oxygen
together in the ooze for a long time one or other
Subject: Re: [geo] Re: Arctic methane workshop: 15-16 October - Methane vents
Stuart
This topic arose because Albert said that plastic film would produce anoxic
conditions in the sea bed. The questions is if we leave methane and oxygen
together in the ooze for a long time one or other will get
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euan.nis...@gmail.com; jens.grein...@nioz.nl; Peter Wadhams; Michel
Halbwachs; harleyrichar...@googlemail.com; bhaskarmv...@gmail.com;
Geoengineering FIPC; Matti Lappalainen; Risto Isomaki; Esko Pettay
*Subject:* Re: [geo] Re: Arctic methane workshop: 15-16 October - Methane
vents
Stuart
Hi Steven,
I think what needs to be decided is the approach:
1) are we trying to address spot-like emissions, or,
2) methane haze arising smoothly from vast area of sea bed.
No. 1 can be addressed by a cupola-like hood over the spot from where the gases
are removed
No. 2 can be addressed by a
Sorry‹I am not enough of an expert to comment per the request, especially
given complexities of the seasonal cycle, changing inversion strengths and
extents, etc.
Mike MacCracken
On 7/28/11 9:54 PM, nathan currier natcurr...@gmail.com wrote:
By the way, if 7% of total RF didn't sound that
This proposed method of methane remediation is similar to the existing sink,
as although OH radical production isn't strictly catalytic, it does recycle
NOx. Whether the chemistry works or not is something I can't comment on.
However, I don't think that TiO2 is likely to be practical. Although
Hi, Andrew -
It would be great if someone like Mike MacCracken could comment on some of
the chemistry in your posting - in that it seems to me confusing, and, I
suspect, somewhat confused. Could you, Andrew, show the reactions that
you're thinking of, so I could understand better? You say that -
Oliver Tickell wrote:
Another approach would be to enhance HO hydroxyl in the atmosphere - the
main destroyer of methane. I have no idea how to set about doing this. It
could be helpful to reduce emissions that utilise existing hydroxyl, such as
miscellaneous hydrocarbons. But the chemistry is
Creating OH radical is best done by leveraging existing processes.
The radical is too short-lived to be effectively distributed when
produced industrially, and energy costs are also too high.
The NOx recycling reaction series was chosen by L Zhou et al in their
recent paper, as (in dry air) NOx
Using liquid air to seal methane vents may well work. Using it for general
cooling of the sea or land surface will not.
Oxides of nitrogen are critical in the formation of hydroxyl radicals. They
therefore play a key role in the breakdown of methane. Although greenhouse
gases in their own
On the issue of using Lair as a vent sealant, I may be wrong, but, I do
believe the ice formed would most likely float away. And, a vent would be
most likely more of a diffused field of bubble streams as opposed to a
central vent. Also, capping such a vent with even cement will be
eventually
You should be able to detect methane release using gas samplers on buoys or
the sea bed. Hydrophones may also detect bubbles. Autonomous ships could
also be used, or data could be collected from any existing marine traffic.
Aerial imaging could detect larger releases.
Putting liquid air into the
Unfortunately, my personal belief is that we have already failed (time wise)
and that the policy makers will not recognize the need for large scale
efforts in time to avoid the first tipping point from developing.
Look at the arctic data for April. There is an unusually high temperature
formation
Do journalistic twists and hype make up your views? Give all of us a
detailed/technical answer..beyond the hype of your favorite talking
head...Please!
On May 8, 2011 12:22am, voglerl...@gmail.com wrote:
Do you have a basic conceptual idea of a plan of action?
I've studied methane geoengineering extensively, so here's my tuppence
If you're going to use liquid air, just pump it into the sea bed where there
are leaks in the permafrost clathrate cap.
Draining bogs will help. Dry material doesn't emit methane
Shelling methane vents with incendiary shells
Dear all,
For years, I have been trying to get more people to brainstorm on ways
to deal with Arctic methane.
Last month, I added a post on this, discussing ways to ignite methane
or produce hydroxyl, at:
http://geoengineering.gather.com/viewArticle.action?articleId=281474979240772
where I
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