Hi Mark, Your comments about the production of methane are very interesting. The group which I chair, the Arctic Methane Emergency Group (AMEG), is concerned about all things methanical, including waste water treatment, of which you have expertise. If William's proposal is to sink carbon (and I have not time at this moment to read his proposal), then it might be advisable to promote methanotrophs at the same time. I might be able to discuss this tomorrow, when I get back to Bath. I leave my hotel room in Davos in a few minutes and then will be travelling back without any internet access.
Cheers, John On Sat, Jul 13, 2013 at 5:00 AM, Peter Flynn <[email protected]>wrote: > Mark, > > > > The residence time for exchange between the deep ocean and the shallow > ocean is on the order of 600 to 1000 years. This is an average; there are > ocean locations where the exchange is far slower (negligible downwelling > and upwelling currents). Hence conversion of biomass to CO2 in the deep > 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. Eng., Ph. D. > > Emeritus Professor and Poole Chair in Management for Engineers > > Department of Mechanical Engineering > > University of Alberta > > [email protected] > > cell: 928 451 4455 > > > > > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *[email protected] > *Sent:* July-12-13 9:40 PM > *To:* [email protected]; [email protected] > *Cc:* geoengineering > *Subject:* RE: [geo] My big-quick-secure CO2 cleanup proposal is still > alive at the MIT geoengineering competition > > > > Bill, > > > > At a quick glance: > > > > 1. I did not detect your nutrient cycling or nutrient mass balancing. > There may be sufficient N, P, K, iron, etc. in deep water below the > themocline. But what fraction are you extracting? > > > > 2. I am a wastewater engineer with some landfill and dairy waste > experience. Do you know what fraction of the "sunk or pumped to bottom" > carbon is available to anaerobic bacteria? Years ago, we used to think > anaerobic bacteria required fresh water and mammal body temperatures to > convert biomass to CH4 and CO2. Now we can buy anaerobic bacteria that > produce at 5C for use in unheated temperate climate dairy digesters. The > bacteria exist or evolve to work in all ocean conditions. The gas > production at seafloor temperatures in seawater will be slower, but not > that much. Perhaps 80% of volatile solids (aka ash-free biomass) hitting > the deep seafloor should be converted to CH4 and CO2 within a decade, if > not sooner. > > > > Mark E. Capron, PE > Ventura, California > www.PODenergy.org > > > > -------- Original Message -------- > Subject: Re: [geo] My big-quick-secure CO2 cleanup proposal is still > alive at the MIT geoengineering competition > From: Andrew Lockley <[email protected]> > Date: Fri, July 12, 2013 7:15 pm > To: [email protected] > Cc: geoengineering <[email protected]> > > I looked through it in detail earlier. Where's the evidence you can get > anywhere near the numbers you need? > > A > > On Jul 13, 2013 4:13 AM, "William H. Calvin" <[email protected]> > wrote: > > I seem to be one of the three finalists in this geoengineering > competition, despite both judges remaining dubious and dismissive. You can > judge for yourself, as it is all at > > > http://climatecolab.org/web/guest/plans/-/plans/contestId/20/planId/1302501 > > My detailed response is in the Comment following the judges’ report. (Note > that the revised proposal you see is not the original proposal the judges > saw and from which I quoted in my reply Comment). > > The 2,000 word limit forced me to boil it down at lot but it has also > become, I hope, a bit more understandable for those who haven't been > following developments since 1983. A more complete proposal is in my short > book, *The Great CO2 Cleanup*, at the Kindle store or the PDF at > http://WilliamCalvin.org/bk16 <http://williamcalvin.org/bk16> . > > I have until Monday to make revisions to the proposal before final > judging. Please email suggestions. If you wish to add public comments or > “Supporter” endorsements, the Comments tab has a login/register link. I am > encouraged to “use on-line social networks” to build support, something I > am not good at doing. > > This competition is my best chance so far to get a wider audience to > consider my reframing of the climate problem and its implications for the > time scale of needed climate actions. > > Thanks to many of you for earlier comments, > > -Bill > > William H. Calvin, Ph.D. > University of Washington, School of Medicine. > > -- > 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. > 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. > 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. > 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. > 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. 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