Ron, That cost estimate is I think the highest I have ever seen for OIF by quite a wide margin. I have not see the article either so don't know what the assumptions are behind that estimated cost. Other cost estimates in the past ranged from I believe around $10 per tonne CO2 upwards. Chris.
On Friday, April 25, 2014 10:44:05 PM UTC+1, Ron wrote: > Oliver, Greg etal > > I was surprised to find such a long history of iron fertilization. Thanks > for bringing the topic back up. > > Surprising to me is at least one article showing that OIF is fantastically > costly. This from a 2009 article by Daniel P. Harrison in > the International Journal of Global > Warming<http://inderscience.metapress.com/content/121488/?sortorder=asc> > > 'A method for estimating the cost to sequester carbon dioxide by > delivering iron to the > ocean<http://inderscience.metapress.com/content/ht086530738202j7/> > ” > > Behind a paywall, so I haven’t read it, but the abstract at: > http://inderscience.metapress.com/content/ht086530738202j7/ > > Says > *"Ship based fertilisation of the Southern Ocean is considered as a case > study, on average, a single fertilisation is found to result in a net > sequestration of 0.01 t C km –2 for 100 years at a cost of US$457 per tonne > CO 2 . **“* > > Or is this not the current view on IOF economics? If at all valid, IOF > shouldn’t seem to be much of a problem., if there is any sort of > competition for those dollars. > > Ron > > > > On Apr 25, 2014, at 10:29 AM, Oliver Morton > <oliver...@economist.com<javascript:>> > wrote: > > Tried that -- dominated by 2009 pubs. But now I see a few later ones > > > On Fri, Apr 25, 2014 at 5:26 PM, Greg Rau <gh...@sbcglobal.net<javascript:> > > wrote: > >> Go to googlescholar and search "Lohafex" >> Greg >> >> ------------------------------ >> *From:* O Morton <omeco...@gmail.com <javascript:>> >> *To:* geoengi...@googlegroups.com <javascript:> >> *Sent:* Friday, April 25, 2014 7:15 AM >> *Subject:* [geo] Lohafex results >> >> Does anyone know where the final results from Lohafex were published (or >> indeed if they were published?) There were, I think, some preliminary >> results published within a year or so, but there doesn't seem to be a big >> synoptic publication anywhere, or a special issue, or anything like that. >> Am I missing something? >> -- >> 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 geoengineerin...@googlegroups.com <javascript:>. >> To post to this group, send email to geoengi...@googlegroups.com<javascript:> >> . >> Visit this group at http://groups.google.com/group/geoengineering. >> For more options, visit https://groups.google.com/d/optout. >> >> >> > > > -- > O=C=O O=C=O O=C=O O=C=O O=C=O > > Oliver Morton > Editor, Briefings > The Economist > > O=C=O O=C=O O=C=O O=C=O O=C=O > > -- > 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 geoengineerin...@googlegroups.com <javascript:>. > To post to this group, send email to geoengi...@googlegroups.com<javascript:> > . > Visit this group at http://groups.google.com/group/geoengineering. > For more options, visit https://groups.google.com/d/optout. > > > -- 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 geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
