>From Wikipedia:
'Geoengineering is the deliberate modification of Earth's environment on a
large scale "to suit human needs and promote habitability".'
There are two main classes of geo-engineering: one dealing with radiation input
to the Earth from the sun; the other dealing with radiation o
To: j...@cloudworld.co.uk
Cc: and...@andrewlockley.com
Sent: Wednesday, January 21, 2009 12:55 PM
Subject: RE: [geo] Re: What is geo-engineering?
This is a useful input but it ducks the issue of greenhouse gas lifetime in
the atmosphere; which I believe can be demonstrated for CO2 to be over 1000
Dear Roy,
Thank you for your detailed response.
You raise some issues about the risks of geo-engineering - but what is the risk
of not geo-engineering? I believe that if we do not use geo-engineering, at
least to save the Arctic sea ice, we will condemn the world to (a) massive
methane rel
Prof. Stern makes the point I was making a year ago now - that we have now
gone past the 2 degC tipping point (450 ppm CO2eq). He now claims we have
to try to stay under 500 ppm so as to stay below 4 deg C increase - well
past what has been projected as the point of no return for the arctic.
*
C
Thanks, David,
Good to point at the Stern article and comment in New Scientist, at:
http://www.newscientist.com/article/dn16433-launch-green-economic-revolution-now-says-stern.html
http://www.newscientist.com/article/mg20126926.600-comment-time-for-a-green-industrial-revolution.html
In that sam
t"
; "geoengineering"
; "geo-engineering"
Sent: Friday, January 23, 2009 4:56 AM
Subject: Re: [geo] Re: What is geo-engineering?
Thanks, David,
Good to point at the Stern article and comment in New Scientist, at:
http://www.newscientist.com/article/dn16433-la
roposphere).
>
> - Original Message -
> From: "Sam Carana"
> To: ; ; "greenhouse effect"
>
> ; "geoengineering"
> ; "geo-engineering"
>
> Sent: Friday, January 23, 2009 4:56 AM
> Subject: Re: [geo] Re: What is geo-enginee
ssage - From: "Sam Carana"
> To: ; ; "greenhouse effect"
> ; "geoengineering"
> ; "geo-engineering"
>
> Sent: Friday, January 23, 2009 4:56 AM
> Subject: Re: [geo] Re: What is geo-engineering?
>
>
> Thanks, David,
>
>
Sam Carana
The power rating of a spray vessel is only 100 kW. They have to operate
in mid ocean and migrate with the seasons so they have to generate their
own energy as they move through the water rather than rely on supplies
from wind turbines.
Stephen Salter
Emeritus Professor of Enginee
.
-Original Message-
From: geoengineering@googlegroups.com
[mailto:geoengineer...@googlegroups.com] On Behalf Of Stephen Salter
Sent: Saturday, January 24, 2009 5:20 AM
To: sam.car...@gmail.com
Cc: John Nissen; greenhouse effect; geoengineering; geo-engineering
Subject: [geo] Re: What is geo
I know Stephen, and I fully support your proposals. But additionally,
as long as there are no spray vessels on the sea in action, why not
use surplus energy generated by wind turbines, to make the wind
turbines spray water over the sea, by making the turbines turn in
reverse, so to say? If the tur
Cc: 'John Nissen'; 'greenhouse effect'; 'geoengineering'; 'geo-engineering'
Subject: [geo] Re: What is geo-engineering?
Is there anyone in this group who does not agree that the primary urgency,
virtually to the exclusion of all other geoengineering considera
eenhouse effect'; 'geoengineering'; 'geo-engineering'
Subject: RE: [geo] Re: What is geo-engineering?
Seems a bit overwrought to me. Of course preventing arctic ice melt and its
consequences is the number one geoengineering priority, but removing carbon
from the atmosphere i
uary 24, 2009 3:32 AM
> To: s.sal...@ed.ac.uk; sam.car...@gmail.com
> Cc: 'John Nissen'; 'greenhouse effect'; 'geoengineering'; 'geo-engineering'
> Subject: [geo] Re: What is geo-engineering?
>
>
> Is there anyone in this group who does not agree
...@comcast.net]
Sent: Saturday, January 24, 2009 2:33 PM
To: Stuart Strand; s.sal...@ed.ac.uk; sam.car...@gmail.com
Cc: 'John Nissen'; 'greenhouse effect'; 'geoengineering'; 'geo-engineering'
Subject: RE: [geo] Re: What is geo-engineering?
Stuart:
I am not sure
pe: stuartestrand
> http://faculty.washington.edu/sstrand/
>
> -Original Message-
> From: Eugene I. Gordon [mailto:euggor...@comcast.net]
> Sent: Saturday, January 24, 2009 2:33 PM
> To: Stuart Strand; s.sal...@ed.ac.uk; sam.car...@gmail.com
> Cc: 'John Nissen'
-685-3836
> > skype: stuartestrand
> >http://faculty.washington.edu/sstrand/
>
> > -Original Message-
> > From: Eugene I. Gordon [mailto:euggor...@comcast.net]
> > Sent: Saturday, January 24, 2009 2:33 PM
> > To: Stuart Strand; s.sal...@ed.ac.
. Strand
>> > 167 Wilcox Hall, Box 352700, Univ. Washington, Seattle, WA 98195
>> > voice 206-543-5350, fax 206-685-3836
>> > skype: stuartestrand
>> >http://faculty.washington.edu/sstrand/
>>
>> > -Original Message-
>> > From: E
...@googlegroups.com] On Behalf Of dsw_s
Sent: Sunday, January 25, 2009 2:27 AM
To: geoengineering
Subject: [geo] Re: What is geo-engineering?
I think saving the arctic sea ice is a lost cause. Saving the permafrost
probably is too. We need to deal with the effects of runaway global
warming, not pin
me.
>
> -gene
>
> -Original Message-
> From: geoengineering@googlegroups.com
>
> [mailto:geoengineer...@googlegroups.com] On Behalf Of dsw_s
> Sent: Sunday, January 25, 2009 2:27 AM
> To: geoengineering
> Subject: [geo] Re: What is geo-engineering?
>
>
lementation. It is in
>> the best interests of my great grandchildren. I am too old for it to make
>> any difference for me.
>>
>> -gene
>>
>> -Original Message-
>> From: geoengineering@googlegroups.com
>>
>> [mailto:geoengineer...@googlegrou
my view only geoengineering can intervene and I have no doubt that
>> eventually it will be implemented. There will be no catastrophic runaway to
>> 24 C. My interest is in earlier rather than later implementation. It is in
>> the best interests of my great grandchildren. I am too old for
[mailto:geoengineer...@googlegroups.com] On Behalf Of Sam Carana
Sent: Sunday, January 25, 2009 10:33 PM
To: geoengineering; geo-engineering; greenhouse effect
Subject: [geo] Re: What is geo-engineering?
One way to define a runaway greenhouse effect is in terms of geoengineering,
i.e. a runaway
h far fewer
> people. Alternately, we can maintain it as it is by controlling the
> temperature changes.
>
> -Original Message-
> From: geoengineering@googlegroups.com
>
> [mailto:geoengineer...@googlegroups.com] On Behalf Of Sam Carana
> Sent: Sunday, January 25, 2009
How is this for an answer:
Geoengineering is defined by the UK Royal Society as "the deliberate
large-scale intervention in the Earth's climate system, in order to
moderate global warming." There are two methods of geoengineering: Solar
Radiation Management (SRM) and Carbon Sequestration.
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