Greg (cc list and pboyd): I like your paper. But I wonder if the concept of using ocean biomass for harvest and eventual partial placement of "half" the carbon in soil (as biochar) was inadvertently or intentionally omitted.
I see major advantages of using ocean biomass (macroalgae and smaller) for biochar as worthy of your and this list's consideration for these reasons, that seem not to be shared by the options you did discuss: a. it provides rather than consumes energy b. the generated energy can be of any form - solid, gas or liquid - for any end use sector. My preference is to back up wind and solar, not for base load service. c. It can improve most soil types - almost all of which are rapidly depleting - with significant improved out-year nutrition benefits from increased primary production. d. the carbon sequestration, although not infinite, is possibly measured in millennia, certainly centuries - perhaps longer than some you include. e. such harvesting is already occurring, and generally the practice would seem to have little international legal/moral concern, especially if practiced in near-shore waters. Ron ----- Original Message ----- From: "Greg Rau" <[email protected]> To: [email protected], [email protected] Sent: Sunday, February 10, 2013 9:44:13 PM Subject: [geo] RE: recent papers on marine ecosystem geoengineering Nor should iron fertilization necessarily be viewed as the poster child for marine CDR. Some other ideas attached - I was limited to 2,00O words. -Greg From: [email protected] [[email protected]] on behalf of Philip Boyd [[email protected]] Sent: Sunday, February 10, 2013 6:54 PM To: [email protected] Subject: [geo] FW: recent papers on marine ecosystem geoengineering Dear Geo group, I have noticed that much of the discussion on this topic are based on older papers. Here is a recent one. Williamson P., D. W.R. Wallace , C.S. Law, P.W. Boyd, Y. Collos, P. Croot, K. Denman, U. Riebesell, S. Takeda, C. Vivian (2012) Ocean fertilization for geoengineering: A review of effectiveness, environmental impacts and emerging governance. Process Safety and Environmental Protection, 9, 475–488. and also a link to a Theme Section on this topic from 2008 Implications of large-scale iron fertilization of the oceans Idea: Howard Browman, Philip W. Boyd Coordination: Philip W. Boyd MEPS 364:213-309 | Complete Theme Section in pdf format (2 MB) Philip Professor Philip Boyd FRSNZ NIWA Centre of Chemical & Physical Oceanography Department of Chemistry University of Otago Dunedin New Zealand 03-479-5249 From: [email protected] [[email protected]] On Behalf Of Ken Caldeira [[email protected]] Sent: Monday, February 11, 2013 1:06 PM To: [email protected] Cc: geoengineering Subject: Re: [geo] "A Cheap and Easy Plan to Stop Global Warming" By David Rotman A nicely done article. I would like to expand on one of Ray Pierrehumbert's comments. He is quoted as saying: “The term ‘solar radiation management’ is positively Orwellian. It’s a way to increase comfort levels with this crazy idea.” —Raymond Pierrehumbert He is right that it was created to inrease comfort level, but it was done so with ironic intent. In 2007, I was organizing a meeting that took place at NASA-Ames. (Incidentally, that meeting is where this google group started. http://hdl.handle.net/2060/20070031204 ) There was some nervousness on the part of local NASA officials that the term "geoengineering" might raise red flags back in Washington. At the time, DOE was talking about "carbon management" which was a bureaucratic way to speak about the potential for CO2 emissions reduction. To avoid the use of the word "geoengineering" in the meeting name, I suggested that we create the term "Solar Radiation Managment" to use for the workshop. It was meant as parody of US-government-style bureaucratic jargon. It was meant as a joke and was intentionally obscurantist. We were laughing about it at the time and never dreamed that it would become standard jargon. The term "Solar Radiation Management" was meant to lower the profile of the meeting while parodying Washington jargon. It amuses me that it has become standard jargon. What started out as parody has moved on from its comedic roots. Comedy has become drama. Incidentally, lately I have been using the term "solar geoengineering" as my term of choice to refer to what SRM has come to denote. Best, Ken _______________ Ken Caldeira Carnegie Institution for Science Dept of Global Ecology 260 Panama Street, Stanford, CA 94305 USA +1 650 704 7212 [email protected] http://dge.stanford.edu/labs/caldeiralab @kencaldeira Caldeira Lab is hiring postdoctoral researchers. http://dge.stanford.edu/labs/caldeiralab/Caldeira_employment.html Our YouTube videos On Mon, Feb 11, 2013 at 5:29 AM, Simon Driscoll < [email protected] > wrote: http://www.technologyreview.com/featuredstory/511016/a-cheap-and-easy-plan-to-stop-global-warming/ Ray Pierrehumbert recently sent this to me, and I haven't seen this posted to the group (apologies if it has been and I missed it in a quick search), so I thought it may be of interest. All the best, Simon ________________________________________________ Simon Driscoll Atmospheric, Oceanic and Planetary Physics Department of Physics University of Oxford Office: 01865 272930 Mobile: 07935314940 http://www2.physics.ox.ac.uk/contacts/people/driscoll http://www.geoengineering.ox.ac.uk/people/who-are-we/simon-driscoll/ http://80000hours.org/members/simon-driscoll -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected] . To post to this group, send email to [email protected] . Visit this group at http://groups.google.com/group/geoengineering?hl=en . For more options, visit https://groups.google.com/groups/opt_out . -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering?hl=en . For more options, visit https://groups.google.com/groups/opt_out . -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering?hl=en . For more options, visit https://groups.google.com/groups/opt_out . -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering?hl=en . For more options, visit https://groups.google.com/groups/opt_out . -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
