Joshua How is Ocean Sequestration of Crop Residue related to OIF - Ocean Iron Fertilization.
I wonder how Ocean Sequestration of crop residue is regarded as economical. Farm land is generally deep inland - US Midwest, etc., the cost of transporting the crop residue to deep ocean for sequestration would be very high. How would you put it into the depths of the ocean? regards Bhaskar On Friday, 14 December 2012 23:30:30 UTC+5:30, Joshua Jacobs wrote: > > Despite its shortcomings, OIF may have a role. > > I don't know if the following research has been followed up on: > > Ocean Sequestration of Crop Residue Carbon: > Recycling Fossil Fuel Carbon Back to Deep Sediments > > Stuard E. Strand, Gregory Benford > > For significant impact any method to remove CO2 from the atmosphere must > process large amounts of carbon efficiently, be repeatable, sequester > carbon for thousands of years, be practical, economical and be implemented > soon. The only method that meets these criteria is removal of crop residues > and burial in the deep ocean. We show here that this method is 92% > efficient in sequestration of crop residue carbon while cellulosic ethanol > production is only 32% and soil sequestration is about 14% efficient. Deep > ocean sequestration can potentially capture 15% of the current global CO2 > annual > increase, returning that carbon back to deep sediments, confining the > carbon for millennia, while using existing capital infrastructure and > technology. Because of these clear advantages, we recommend enhanced > research into permanent sequestration of crop residues in the deep ocean. > > http://pubs.acs.org/doi/abs/10.1021/es8015556 > > > On Thursday, December 13, 2012 2:35:53 PM UTC-8, Wil Burns wrote: >> >> FYI. Wil >> http://sydney.edu.au/news/84.html?newscategoryid=2&newsstoryid=10740&utm_source=console&utm_medium=news&utm_campaign=cws >> >> -- >> Dr. Wil Burns, Associate Director >> Master of Science - Energy Policy & Climate Program >> Johns Hopkins University >> 1717 Massachusetts Avenue, NW >> Room 104J >> Washington, DC 20036 >> 202.663.5976 (Office phone) >> 650.281.9126 (Mobile) >> wbu...@jhu.edu >> >> http://advanced.jhu.edu/academic/environmental/master-of-science-in-energy-policy-and-climate/index.html >> >> SSRN site (selected publications): http://ssrn.com/author=240348 >> >> >> Skype ID: Wil.Burns >> >> Teaching Climate/Energy Law & Policy Blog: >> http://www.teachingclimatelaw.org >> >> >> -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To view this discussion on the web visit https://groups.google.com/d/msg/geoengineering/-/vQTjOyxGAd8J. To post to this group, send email to geoengineering@googlegroups.com. To unsubscribe from this group, send email to geoengineering+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
