David, Here are a few links I pulled up from past discussions and posts on this overall subject. Deepwelling: https://groups.google.com/d/msg/geoengineering/eValFNH8IQY/lJNWKARxs88J
Further, the cultivation of algae, in conjunction with tubes, provides a significant counter to DIC. No bubbling of CO2 has ever been reported in field trials. I found the following statement does not reflect the views of Gao et.al.. *“The concept is flawed,” says Scott Doney, a marine chemist at WHOI. He says it neglects the fact that deeper waters with high nutrients also generally contain a lot of dissolved inorganic carbon, including dissolved CO2. Bringing these waters to the lower pressures of the surface would result in the CO2 bubbling out into the air."* "Use of Macroalgae for marine Biomass Production and CO2 remediation" Gao et al. J.A.P. 1994 Please see page 52, second column, 1st paragraph. mel.xmu.edu.cn/upload_paper/201155112811-wse806.pdf On the statement: *"So ocean fertilization * *experiments should start where strong currents can disperse the plankton blooms. So let's try some of the more natural-like layer mixing or bottom stirring proposals. And let's see if we can make another Grand Banks somewhere."* There is the issue of incomplete sequestration of the biomass in such "strong currents". Would it not be better to pump the biomass down (plow it under) into a deep valley, which has no current, where the undecomposed biomass could be sequestered for geological times? On the statement: * "It does not seem to have occurred to anyone that there might be other places on Earth that have almost the right conditions and that might be tipped into similar fecundity with just a little help." * * * The global commercial fishing industry has, at this time, covered every hectare within that category. Those areas that come even close to being viable for being "tipped" are highly valued and protected as nurseries. I believe the best place for ocean pipes/algaeculture/sequestration is the North Pacific Gyre. Hopefully, we would be able to sequester at least some of the trash in the gyre along with mountains of seaweed. Best, Michael -- 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.
