After our publication it was pointed out to me that the ventilation rate of the Gulf of Mexico is such that the half life of water there is about 250 years. One of the major advantages of CROPS over terrestrial burial options is that the biomass carbon separated from the atmosphere by the ocean thermocline, so that if CO2 is released from the biomass it will not be released to the atmosphere for 1000 years (the ventilation rate of the world ocean). Thus we no longer view burial in the GoM as desirable (except perhaps in hypersaline pools in the western gulf). As it happens the carbon cost of transport to the Atlantic abyss is not much greater than our previous estimates.
= Stuart = Stuart E. Strand 490 Ben Hall IDR Bldg. Box 355014, Univ. Washington Seattle, WA 98195 voice 206-543-5350, fax 206-685-9996 skype: stuartestrand http://faculty.washington.edu/sstrand/ Alvia Gaskill wrote You might also consider the use of deep ocean disposal as Strand and Benford did for crop waste. Wood chips can be sluiced and compressed together might sink without any weights. Of course, this is probably not a good time to be recommending doing this in the Gulf of Mexico. -- 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.
