I agree, emphatically….a very highly valued contribution.
Peter
*From:* 'Sev Clarke' via geoengineering
*Sent:* Tuesday, March 7, 2023 2:36 PM
*To:* geoengineering
*Subject:* [geo] Re: Moderator / owner role
I hope that both of you will keep up the good work. It is invaluable.
On
I will register my disagreement: reduction of CH4 should be part of CDR;
you can count on my interest. For purists, let us refer to CH4 as CO2eq.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
I had read from the research information that in a chemical and size sense
the spheres could be thought of as sand, just shaped to be highly
reflective. But the question of whether they float is a good one.
Peter
*From:* geoengineering@googlegroups.com *On
Behalf Of *Andrew Lockley
*Sent:*
(spray), or thicken
existing ice (low lift), or best of all: both.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
Edmonton, Alberta, Canada
1 928 451 4455
peter.fl...@ualberta.ca
to fall off the map
as far as references go. I’m retired and long past the annual faculty
review process.
Best,
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
Edmonton, Alberta
technologies have a long history in the north. A warmer
atmosphere radiates more heat into space, with a temperature dependence of
T^4, where T is the absolute temperature.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department
rs of climate change is a dangerous distraction: dangerous in that it
diverts attention, needlessly, from a very important issue.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualbe
on the challenge of climate change.
Trying to end capitalism, or perhaps more accurately regulated market
economies, is beyond the improbability of rapid decarbonization.
Thanks again for calling this out.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management
of organic agriculture,
let us not confound the challenge of climate change with it.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451 4455
” only have meaning
when linked to a cost and scale analysis.
I have learned much from this group over the years, including approaches I
would not otherwise have thought of.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department
and odor. So if one
has a phosphate, odor or pathogen problem, it may make sense, but if one is
simply trying to mitigate atmospheric GHG components, one gets more benefit
for the expense from other approaches.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management
Manitoba is an example). DC has also been used for under ocean
lines (e.g. a connection between the north and south New Zealand islands)
and for interchange between disconnected grids (between western and eastern
North America).
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole
://oceanservice.noaa.gov/facts/thermocline.html
One could bring the deep ocean from 1000 meters to surface in a sealed
tube; it would take energy. I don’t know the permanent salt fountain well
enough to comment on it.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451 4455
*From:* Klaus Lackner [mailto:klaus.lack...@asu.edu]
*Sent:* Friday, September 15, 2017 11:56
this is helpful.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451 4455
*From:* kcalde...@gmail.com [mailto:kcalde...@gmail.com
batteries (and
computer chips).
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451 4455
*From:* geoengineering@googlegroups.com [mailto
that arise to complicate and delay progress in removing carbon.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451 4455
*From
contactor and high alkalinity to
enhance the transfer from air to liquid.
Peter Flynn
*From:* geoengineering@googlegroups.com [mailto:
geoengineering@googlegroups.com] *On Behalf Of *Shah, Nilay
*Sent:* Sunday, November 20, 2016 3:00 PM
*To:* Robert Chris <robert.ch...@open.ac
It is only a removal of carbon is you sequester the residue, or use it as
an energy source to displace fossil fuel usage. Otherwise the extra biomass
is simply degraded to CO2 by the multitude of organisms that do so,
routinely.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor
.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
*peter.fl...@ualberta.ca* <peter.fl...@ualberta.ca>
cell: 928 451 4455
*From:* Ronal W. Larson [mailto:rong
soil carbon, and I am
aware of some studies that suggest that in some localities forest
harvesting has reduced soil carbon. But to cite this as a reason to back
away from bioenergy is poor science, or rather non-science.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair
forward to an analysis.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451 4455
*From:* geoengineering@googlegroups.com [mailto
or negative carbon, it will
overwhelm the cost of the incremental nitrogen requirement, since for
agricultural crops there is already a fertilizer application, only the
dosage is increased: the sole cost is the nitrogen itself.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole
(the
Atacama desert in Chile has too much humidity, or more accurately water in
the atmosphere). For this thermal swing adsorption process to work in
Switzerland it must have an adsorbent that does not attract water relative
to CO2.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole
to increase the gas to liquid transfer
rate.
The slow rate of CO2 uptake made the cost of carbon capture excessive
compared to alternatives.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University
.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451 4455
*From:* geoengineering@googlegroups.com [mailto:
geoengineering@googlegroups.com
on both
sides. Trading economic security against an admittedly more carbon intense
fuel source is a difficult tradeoff.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl
in both salt and fresh water in order to answer
questions specific to a sea ice enhancement project.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
in the
uninformed.
Making sea ice doesn’t address the rising temperature itself other than by
restoring the albedo of the ice cover itself, but it does sustain the ice.
I think it is a good companion to temperature/insolation modification
schemes.
Peter Flynn
Peter Flynn, P. Eng., Ph. D
of the energy that goes
into seemingly endless discussions of governance shift into populating our
knowledge of options.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl
Re: [geo] Arctic sea ice depletion to result in rise of CO2 in atmosphere |
Zee News
North Atlantic Deep Water (NADW) is thought to primarily form in the open
ocean and does not originate from the brine coming off the bottom of sea
ice.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor
change, both by emission
reduction and by geoengineering of impact: it isn’t yet “World War II”
urgency. But as Andrew notes, we get closer to the waterfall….
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
My thought: thicken the ice by pumping water from under the ice to the top
during the winter, using barge mounted pumps powered by wind generated
electricity. Stronger, more mass, hence slower to melt.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management
of electric power, by
direct (if metal pipe) or indirect (by heat tracing) heating of the pipe.
Wind turbine power is the source we envisioned in unstaffed pumping
stations. We did not envision long pipe runs, rather long water flow paths.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor
, despite the fact
that making ice is a common practice in the north with well documented
processes.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451
find a way down to the sea, through microchannels. If the salt does stay,
what is the impact in the spring.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
of just
getting more heat above the ice, to be ultimately radiated away, with a
goal of countering deep ocean temperature rise.
Interesting technical concept.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
My chemistry is as or more rusty, but isn’t HCO3- in a second equilibrium,
with CO2 and water? Does increasing the HCO3- concentration push CO2 out of
the ocean?
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical
.
The point of this isn’t to plug any specific project but rather to
illustrate that risk is project specific. Hence I think that discussions of
risk would be improved if it were focused on projects rather than a general
discussion of “geoengineering”.
Peter Flynn
Peter Flynn, P. Eng., Ph. D
subsequently regrown, one would still have removed the amount of carbon
contained in the forest. (I’m ignoring any secondary effect of char). Hence
I think this alternative can be compared to any other one time means of
sequestering carbon.
Peter
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor
saw a
further honing of costs and technological soundness.
Best,
Peter
*From:* Fred Zimmerman [mailto:geoengineerin...@gmail.com]
*Sent:* July-31-13 5:35 PM
*To:* Peter Flynn; geoengineering
*Subject:* Re: [geo] ESD - Carbon farming in hot, dry coastal areas: an
option for climate change
.
Not sure this is correct, I would welcome your comments.
Peter Flynn
*From:* William Calvin [mailto:wcal...@uw.edu]
*Sent:* July-13-13 5:34 PM
*To:* Peter Flynn
*Cc:* markcap...@podenergy.org; andrew.lock...@gmail.com; geoengineering
*Subject:* Re: [geo] My big-quick-secure CO2 cleanup proposal
ocean would not liberate it to the atmosphere for a very long time, perhaps
past the age of fossil fuels.
I don’t know enough about the behavior of methane, i.e. whether it is
soluble or would form gas bubbles. If it is soluble the same long storage
would apply.
Peter Flynn
Peter Flynn, P
difficult for climate change, perhaps a reflection of the
magnitude of the economic impact.
Peter Flynn
*From:* geoengineering@googlegroups.com [mailto:
geoengineering@googlegroups.com] *On Behalf Of *euggor...@comcast.net
*Sent:* June-27-13 6:13 PM
*To:* johnnissen2...@gmail.com
*Cc
round usage. However, if thickening sea ice focuses on
additives it will add a layer of environmental complexity (adding sawdust
to the Arctic ice cap) that can be avoided if a sufficient thickness can be
achieved with the additive.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor
crystallizes? A
wonderful question for a small test on a near shore ice sheet in the far
north.
If it is easy to incorporate air bubbles in ice, great, but it may not be
needed: very thick ice islands were created as drilling platforms in one
season.
Peter Flynn
*From:* geoengineering
farms.
Peter Flynn
Peter Flynn, P. Eng., Ph. D.
Emeritus Professor and Poole Chair in Management for Engineers
Department of Mechanical Engineering
University of Alberta
peter.fl...@ualberta.ca
cell: 928 451 4455
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