Of course, there’s also a lot of literature in the context of biochar. Our bibliography has hundreds of instances discussing biochar and NO2 emissions: https://www.zotero.org/groups/2282974/carbon_removal/items
wil [Institute for Carbon Removal Law & Policy] Wil Burns, Co-Director & Professor of Research Institute for Carbon Removal Law & Policy | American University Phone: 650.281.9126 Web: www.american.edu/sis/centers/carbon-removal<https://www.american.edu/sis/centers/carbon-removal/> Email: [email protected]<mailto:[email protected]> Skype: wil.burns<skype:wil.burns?chat> Address: 2650 Haste Street, Towle Hall #G07, Berkeley, CA 94720 USA Follow us: [https://img.mysignature.io/s/v3/7/c/f/7cf1bbde-db4e-51b2-ac59-ab19344bad51.png]<https://www.facebook.com/Institute-for-Carbon-Removal-Law-and-Policy-336916007065063/> [https://img.mysignature.io/s/v3/c/8/9/c897a27d-c2c0-5e72-b299-b784e320fe4d.png]<https://twitter.com/CarbonRemovalAU> From: [email protected] <[email protected]> On Behalf Of Renaud de RICHTER Sent: Sunday, March 31, 2019 6:23 AM To: Andrew Lockley <[email protected]> Cc: geoengineering <[email protected]>; [email protected] <[email protected]> <[email protected]> Subject: Re: [CDR] N2O geoengineering Yes, there is! It consits in transforming N2O back into N2 and 1/2 O2 by photocatalysis Ming, Tingzhen, Renaud de_Richter, Sheng Shen, and Sylvain Caillol. "Fighting global warming by greenhouse gas removal: destroying atmospheric nitrous oxide thanks to synergies between two breakthrough technologies<https://link.springer.com/article/10.1007/s11356-016-6103-9>." Environmental Science and Pollution Research 23.7 (2016): 6119-6138. https://link.springer.com/article/10.1007/s11356-016-6103-9 The article has been abridged by an independent service of the European Union located in UK in http://ec.europa.eu/environment/integration/research/newsalert/pdf/nitrous_oxide_removed_atmosphere_generation_renewable_energy_476na3_en.pdf Andrew you criticized it on https://groups.google.com/forum/#!searchin/geoengineering/nitrous$20oxide%7Csort:relevance/geoengineering/wfc-qGC-Abs/iWtxCy0iEQAJ _ . _ . _ . _ ._ . _ . Article abstract Even if humans stop discharging CO2 into the atmosphere, the average global temperature will still increase during this century. A lot of research has been devoted to prevent and reduce the amount of carbon dioxide (CO2) emissions in the atmosphere, in order to mitigate the effects of climate change. Carbon capture and sequestration (CCS) is one of the technologies that might help to limit emissions. In complement, direct CO2removal from the atmosphere has been proposed after the emissions have occurred. But, the removal of all the excess anthropogenic atmospheric CO2 will not be enough, due to the fact that CO2 outgases from the ocean as its solubility is dependent of its atmospheric partial pressure. Bringing back the Earth average surface temperature to pre-industrial levels would require the removal of all previously emitted CO2. Thus, the atmospheric removal of other greenhouse gases is necessary. This article proposes a combination of disrupting techniques to transform nitrous oxide (N2O), the third most important greenhouse gas (GHG) in terms of current radiative forcing, which is harmful for the ozone layer and possesses quite high global warming potential. Although several scientific publications cite “greenhouse gas removal,” to our knowledge, it is the first time innovative solutions are proposed to effectively remove N2O or other GHGs from the atmosphere other than CO2. Keywords Greenhouse gas removal Solar chimney power plant Photocatalytic reduction Photocatalytic reactor Negative emission technology Cutting down atmospheric N2O concentration to protect the ozone layer and lessen global warming Le dim. 31 mars 2019 à 14:52, Andrew Lockley <[email protected]<mailto:[email protected]>> a écrit : Is there any literature on N2O geoengineering? I've not seen any, despite searching. It's highly persistent (~century) and has a high GWP (~300). It seems that the principal sink is soil bacteria, which relies on (very slow) gas exchange through the soil surface layer. AFAIK, total mitigation is very difficult (as 3/4 is from agriculture) - although partial mitigation can be achieved by better fertiliser practice, etc. (cross posting due to expertise in soil on the carbon list) Sources https://www.epa.gov/ghgemissions/overview-greenhouse-gases https://www.tandfonline.com/doi/abs/10.1080/00380768.2012.733869 Andrew -- 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 [email protected]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at https://groups.google.com/group/CarbonDioxideRemoval. 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To view this discussion on the web visit https://groups.google.com/d/msgid/CarbonDioxideRemoval/CAHodn9-d5AGx1Aje-%2Bs_42HPvjxPSBXHc5_30dPjXvq%2BZLiV4A%40mail.gmail.com<https://groups.google.com/d/msgid/CarbonDioxideRemoval/CAHodn9-d5AGx1Aje-%2Bs_42HPvjxPSBXHc5_30dPjXvq%2BZLiV4A%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 "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.
