Re: dumping, Stuart you should be aware that essentially anything other than a fishhook or a net introduced to the surface of the ocean falls under the london convention. whether or not it is considered dumping by them is another matter-- but even dredge material falls under the convention. Most people would probably be similarly amazed that material dredged up in one area and deposited in another--even if its only a couple miles away (and in intl waters) falls under the oversight of an international regulatory body.
I'm not trying to discourage or dissuade you in any way, just that you might be aware of the question. You might contact dave herman at the department of state and start an early discussion-- he would be appreciative of the gesture. D On Jan 23, 12:30 pm, Stuart Strand <[email protected]> wrote: > We are not proposing to deposit biochar in the ocean, rather we propose to > deposit bales of straw or stover. These materials are natural plant products > and are deposited constantly on the deep ocean floor in the alluvial fans of > rivers by natural processes, so the process should not be considered dumping. > > Depending on which of the many schemes for biochar are used there are varying > amounts of C emitted during biochar production, which would represent > inefficiencies. > > = Stuart = > > Stuart E. Strand > 167 Wilcox Hall, Box 352700, Univ. Washington, Seattle, WA 98195 > voice 206-543-5350, fax 206-685-3836http://faculty.washington.edu/sstrand/ > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Dan Whaley > Sent: Friday, January 23, 2009 10:00 AM > To: geoengineering > Subject: [geo] Re: Crop residue ocean permanent sequestration > > This is interesting. And one wonders whether this is a technique that > should be raised at all in the upcoming LC meeting on OIF... > > i.e. would biochar-at-sea be considered dumping under the LC? > > D > > On Jan 23, 8:55 am, Stuart Strand <[email protected]> wrote: > > We have just published the following peer reviewed article in Environmental > > Science and Technology: > > > Ocean Sequestration of Crop Residue Carbon: Recycling Fossil Fuel Carbon > > Back to Deep Sediments<http://pubs.acs.org/doi/abs/10.1021/es8015556> > > Stuart E. Strand and 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. > > > Available on line here: > > >http://pubs.acs.org/journal/esthag > > > or email me requesting a reprint > > > = Stuart = > > > Stuart E. Strand > > 167 Wilcox Hall, Box 352700, Univ. Washington, Seattle, WA 98195 > > voice 206-543-5350, fax 206-685-3836 > > skype: stuartestrandhttp://faculty.washington.edu/sstrand/ > > > Using only muscle power, who is the fastest person in the world? > > Flying start, 200 m 82.3 mph!http://en.wikipedia.org/wiki/Sam_Whittingham > > Hour http://en.wikipedia.org/wiki/Hour_record > > 55 miles, upside down, backwards, and head first! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en -~----------~----~----~----~------~----~------~--~---
