The materials volumes of the sprays are very small and the concentrations needed to effect biological changes may substantially impact droplet formation and CCN properties
A On 13 Nov 2017 19:01, "David Sevier" <[email protected]> wrote: > I have been considering how the base technology (the equipment that sprays > the salt water to whiten the clouds) that underpins Dr Salter’s cloud > whitening geo-engineering could be used in different and new ways. I > believe that I have hit upon a modification to the base technology that may > prove to be quite important and very useful. > > *Proposed Modification to Cloud Whitening * > > Into the intake line feeding the spray equipment (this is the low pressure > side), inject either dissolved solutions / fine suspensions of key marine > nutrients such as iron, phosphate and silicate that limit growth in the top > few centimetres of the ocean surface away from the continental shelves. The > nutrients will be delivered to the clouds and will later fall as rain and > deliver the dilute (i.e. the level that micro plants require) nutrients to > the ocean surface. The proposed method avoids delivering nutrients in high > concentration from a dragged point and then requiring currents and waves to > disperse nutrients. The proposed method, because it uses wind, rain and > weather, will deliver nutrients across wide areas of ocean surface*. In > essence I am suggesting converting the equipment for cloud whitening into a > very efficient method for delivering marine nutrients across wide areas > that will be significantly better than alternative methods. T*his > solution directly address the problem of spreading marine nutrients that if > often cited as a drawback in reference to ocean fertilization The > modification should be relatively inexpensive and simple to make as it is > little more than using a low pressure pump to continuously inject into a > flowing line. > > *Potential Advantages* > > Relatively few spray assemblies should be able fertilize very large areas > of ocean. Land based installations (which will cost less to build and > operate) on remote islands such as Easter Island will be able to deliver > nutrients to large areas of ocean. Overall the ability to deliver nutrients > across wide areas of the ocean surface for low cost and with reduced > logistic problems should improve the opportunities for ocean > fertilization. > > *Some Discussion* > > The modification of cloud whitening as I have outlined, blurs the lines > between solar radiation management and enhanced direct carbon capture. It > is both and should improve the interest in and need to further develop Dr > Salter’s cloud whitening technology. > > One further point that seems worth of mention: many of the ocean > ecosystems are near collapse due to overfishing driven by the rising world > population. This is a large problem that urgently needs a solution. It is > likely that increasing the deep ocean surface water productivity by > fertilization will lead to greater fish stocks in the areas where fishing > tends to be poor at present. Potentially this may give a much needed safety > valve to overfished areas and allow these areas to recover. Some I expect > will cite increased fish stocks in areas that are nutrient poor as changing > ecosystems and hold this as a reason for not considering ocean > fertilization. I would point out that we are already very severely > modifying coastal ecosystems by overfishing. Reversing this by increasing > deep water fish stocks is the better option. Ultimately the world > population has to be fed. > > > > David Sevier > > Carbon Cycle Limited > > 248 Sutton Common Road > <https://maps.google.com/?q=248+Sutton+Common+Road+Sutton,+Surrey+SM3+9PW+England&entry=gmail&source=g> > > Sutton, Surrey SM3 9PW > <https://maps.google.com/?q=248+Sutton+Common+Road+Sutton,+Surrey+SM3+9PW+England&entry=gmail&source=g> > > England > <https://maps.google.com/?q=248+Sutton+Common+Road+Sutton,+Surrey+SM3+9PW+England&entry=gmail&source=g> > > Tel 44 (0)208 288 0128 > > Fax 44 (0)208-288 0129 > > www.carbon-cycle.co.uk > > > > This email is private and confidential > > > > > > > > > > > > -- > 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 https://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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
