I don't understand. Cly is about 10pc of the methane sink, so how is it going to damage OH via ozone loss? Does that mean ALL attempts to raise Cly will lead to the increase not decrease of methane lifetime? If so it's actually a net negative sink.
On Sun, 18 Sept 2022, 21:43 Keutsch, Frank N, <[email protected]> wrote: > There is not much but Hannah Horowitz in Becky Alexander’s group has a > publication on this. Cly and Bry increase by 20-40%, tropospheric ozone -3 > to -6%, CH4 lifetime increases due to decreased OH by 3-6. Overall not a > significant impact on radiative forcing, small impact on tropospheric ozone… > > > > https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7375039/ > > > > Frank > > > > > ___________________________________________________________________________________________ > > Frank N. Keutsch > > Stonington Professor of Engineering and Atmospheric Science > > > > Harvard John A. Paulson School of Engineering and Applied Sciences > > Department of Chemistry and Chemical Biology > > Department of Earth and Planetary Sciences > > Harvard University > > 12 Oxford Street > > Cambridge, MA 02138 > > USA > > > > E-mail: [email protected] > > > > Tel:+1-617-495-1878 > > > ___________________________________________________________________________________________ > > > > > > > > > *From: *<[email protected]> on behalf of Andrew Lockley < > [email protected]> > *Reply-To: *"[email protected]" <[email protected]> > *Date: *Sunday, September 18, 2022 at 3:35 PM > *To: *geoengineering <[email protected]> > *Subject: *[geo] CSIRO PUBLISHING | Environmental Chemistry > > > > https://www.publish.csiro.au/en/EN14279 > <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.publish.csiro.au_en_EN14279&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=SxgtIVByLvhD8QiO8rgwrvm9f9GML9Drha7439cd21U&m=YdJjTmG12MKTzpo8t3pGsv5yuTcB7CfQ6A-WxbbY4dVmIypPC8lTt1vwBbHkJ9g8&s=jjw3xxWpLUli9u0-euqpHz0rigrcbyOu7igyFxGWzI4&e=> > > > > Has anyone looked at the possible effect on radical chemistry from MCB? > This paper suggests that it might boost .Cl and hence may act as a methane > sink. > > > > A > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/geoengineering/CAJ3C-07ba7X_XMcveVooUqe%2B51QpU-jAH%2Bjr6LVZs7OnWo5vjQ%40mail.gmail.com > <https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_msgid_geoengineering_CAJ3C-2D07ba7X-5FXMcveVooUqe-252B51QpU-2DjAH-252Bjr6LVZs7OnWo5vjQ-2540mail.gmail.com-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dfooter&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=SxgtIVByLvhD8QiO8rgwrvm9f9GML9Drha7439cd21U&m=YdJjTmG12MKTzpo8t3pGsv5yuTcB7CfQ6A-WxbbY4dVmIypPC8lTt1vwBbHkJ9g8&s=frlrCIms7rv9xsQLSGxdekChmr-ko_ahZ357UyOn8kg&e=> > . > > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/geoengineering/CAJ3C-04Ezpi05c4UuqiCWuOdEtWmKg3rk%2BRT%2B_6FgyvPWYAvWw%40mail.gmail.com.
