But Dr. Goreau, Isn't this call for soil carbon in direct conflict with agricultural yields of carbon-rich crops? And about it being 'most efficient'; When I think of efficiency, I think of more of some yield with less of some input. What are, or will be, the limiting inputs going into carbon sequestration? Will it be dollars per ton carbon fixed, or joules of sunlight energy per ton carbon fixed, or human lives per ton? By the way, I noticed that William H. Schlesinger, in *Biogeochemistry: An Analysis of Global Change* agrees with you that calcium carbonate dissolves at ocean depths. It's amazing to me that all the carbonates of earth must have formed on continental shelves; that our atmosphere's CO2 concentration is so dependent on these..
Brian On Thu, Aug 30, 2018 at 9:08 PM Thomas Goreau <gor...@globalcoral.org> wrote: > The most effective way to increase soil water storage capacity, and future > carbon storage, is to increase it’s soil organic carbon and black carbon > (biochar). Each gram of soil carbon holds many grams of water. > > Regenerative development to reverse climate change (Geotherapy) strategies > should focus on increasing soil carbon to increase carbon storage and soil > water, and increase future carbon storage as shown in this recent paper > that dry years cause more rapid CO2 buildup in the atmosphere (below). > We’ll help solve our food and water supply problems at the same time……….. > > > > > > > > > > > > > > > > > > > > *Thomas J. F. Goreau, PhDPresident, Global Coral Reef AlliancePresident, > Biorock Technology Inc.Coordinator, Soil Carbon AllianceCoordinator, United > Nations Commission on Sustainable Development Small Island Developing > States Partnership in New Sustainable Technologies37 Pleasant Street, > Cambridge, MA 02139gor...@globalcoral.org > <gor...@globalcoral.org>www.globalcoral.org > <http://www.globalcoral.org>Skype: tomgoreauTel: (1) > 617-864-4226Books:Geotherapy: Innovative Methods of Soil Fertility > Restoration, Carbon Sequestration, and Reversing > CO2 Increasehttp://www.crcpress.com/product/isbn/9781466595392 > <http://www.crcpress.com/product/isbn/9781466595392>Innovative Methods of > Marine Ecosystem > Restorationhttp://www.crcpress.com/product/isbn/9781466557734 > <http://www.crcpress.com/product/isbn/9781466557734>* > > On Aug 30, 2018, at 8:54 PM, Andrew Lockley <andrew.lock...@gmail.com> > wrote: > > Poster's note: vital for integration of CDR and SRM > > https://www.nature.com/articles/s41586-018-0424-4 > > Sensitivity of atmospheric CO2 growth rate to observed changes in > terrestrial water storage > > - Vincent Humphrey > <https://www.nature.com/articles/s41586-018-0424-4#auth-1>, > - Jakob Zscheischler > <https://www.nature.com/articles/s41586-018-0424-4#auth-2>, > - […] > - Sonia I. Seneviratne > <https://www.nature.com/articles/s41586-018-0424-4#auth-6> > > *Nature*volume 560, pages628–631 (2018) | Download Citation > <https://www.nature.com/articles/s41586-018-0424-4.ris> > Abstract > > Land ecosystems absorb on average 30 per cent of anthropogenic carbon > dioxide (CO2) emissions, thereby slowing the increase of CO2 concentration > in the atmosphere1 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR1>. Year-to-year > variations in the atmospheric CO2growth rate are mostly due to > fluctuating carbon uptake by land ecosystems1 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR1>. The > sensitivity of these fluctuations to changes in tropical temperature has > been well documented2 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR2>,3 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR3>,4 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR4>,5 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR5>,6 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR6>, but > identifying the role of global water availability has proved to be elusive. > So far, the only usable proxies for water availability have been > time-lagged precipitation anomalies and drought indices3 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR3>,4 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR4>,5 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR5>, owing to a > lack of direct observations. Here, we use recent observations of > terrestrial water storage changes derived from satellite gravimetry7 > <https://www.nature.com/articles/s41586-018-0424-4#ref-CR7> to > investigate terrestrial water effects on carbon cycle variability at global > to regional scales. We show that the CO2 growth rate is strongly > sensitive to observed changes in terrestrial water storage, drier years > being associated with faster atmospheric CO2 growth. We demonstrate that > this global relationship is independent of known temperature effects and is > underestimated in current carbon cycle models. Our results indicate that > interannual fluctuations in terrestrial water storage strongly affect the > terrestrial carbon sink and highlight the importance of the interactions > between the water and carbon cycles. > > -- > You received this message because you are subscribed to the Google Groups > "Carbon Dioxide Removal" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to carbondioxideremoval+unsubscr...@googlegroups.com. > To post to this group, send email to carbondioxideremo...@googlegroups.com > . > Visit this group at https://groups.google.com/group/CarbonDioxideRemoval. > To view this discussion on the web visit > https://groups.google.com/d/msgid/CarbonDioxideRemoval/CAJ3C-07YtYz%2B41g1JaKWRasxZ52t0xOraWOzFtzZXTunY1ER0w%40mail.gmail.com > <https://groups.google.com/d/msgid/CarbonDioxideRemoval/CAJ3C-07YtYz%2B41g1JaKWRasxZ52t0xOraWOzFtzZXTunY1ER0w%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to the Google Groups > "Carbon Dioxide Removal" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to carbondioxideremoval+unsubscr...@googlegroups.com. > To post to this group, send email to carbondioxideremo...@googlegroups.com > . > Visit this group at https://groups.google.com/group/CarbonDioxideRemoval. > To view this discussion on the web visit > https://groups.google.com/d/msgid/CarbonDioxideRemoval/EBBB014B-C14A-4CB6-BA73-9C1F569C1942%40globalcoral.org > <https://groups.google.com/d/msgid/CarbonDioxideRemoval/EBBB014B-C14A-4CB6-BA73-9C1F569C1942%40globalcoral.org?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. 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