The policy context for carbon dioxide removal includes its effect on radiative forcing. RF management is critical to the goal of a stable and liveable climate. CDR can only have climate effect when integrated into a program of albedo enhancement to cut radiative forcing.
The need to focus on RF is unpalatable for CDR advocates who prefer to ignore the problems of global warming. And yet it seems inescapable that failure to enhance albedo will trigger tipping points that will swamp potential climate benefits of CDR. A ten foot levee is no good against a twenty foot flood. But that is the result of a climate policy fixated on carbon rather than albedo. RT From: Michael Hayes <[email protected]> Sent: Wednesday, 15 March 2023 12:03 PM To: [email protected] Cc: Planetary Restoration <[email protected]>; NOAC <[email protected]>; healthy-planet-action-coalition <[email protected]>; geoengineering <[email protected]>; Carbon Dioxide Removal <[email protected]>; Healthy Climate Alliance <[email protected]> Subject: Re: [prag] Re: [CDR] A Climate Model: Net Zero Heating Suggest whatever you wish, I'll object to any non CDR post being posted in the CDR list. On Tue, Mar 14, 2023, 2:56 PM <[email protected] <mailto:[email protected]> > wrote: With all due respect Michael Hayes, your failure to see the relevance to CDR ignores the global warming context of CDR. The thread quantifies the planetary heating and cooling balance based on published research documenting factors to date. It shows the total contribution needed from carbon dioxide removal and other greenhouse gas removal as well as cooling factors to achieve net zero heating. It also explains prioritisation, showing that CDR has to operate over a slower time frame than albedo enhancement. I expect that is what you object to, but it is a simple scientific observation. To quantify Net Zero Heating is directly relevant to CDR by placing CDR within the context of total radiative forcing. That is why I posted it to the CDR Group. Are you a moderator at the CDR Group? If not, can I suggest you leave list moderation to the moderators? Robert Tulip From: [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]> > On Behalf Of Michael Hayes Sent: Wednesday, 15 March 2023 7:46 AM To: [email protected] <mailto:[email protected]> Cc: Planetary Restoration <[email protected] <mailto:[email protected]> >; NOAC <[email protected] <mailto:[email protected]> >; healthy-planet-action-coalition <[email protected] <mailto:[email protected]> >; geoengineering <[email protected] <mailto:[email protected]> >; Carbon Dioxide Removal <[email protected] <mailto:[email protected]> >; Healthy Climate Alliance <[email protected] <mailto:[email protected]> > Subject: [prag] Re: [CDR] A Climate Model: Net Zero Heating There is nothing within this thread that is addressed directly to any aspect of the extensive list of STEM, policy, and/or socioeconomics level issues within the recognized CDR space. On Mon, Mar 13, 2023, 8:37 PM <[email protected] <mailto:[email protected]> > wrote: Stabilising the climate requires equality of positive and negative radiative forcing to achieve net zero heating. Here is a simple model of how climate stability could be achieved over coming decades and centuries using albedo enhancement and greenhouse gas removal. Stratospheric Aerosol Injection, Marine Cloud Brightening and other cooling methods can balance CO2 and CH4 and other warming factors. The left half of the diagram is from An Imperative To Monitor Earth’s Energy Imbalance, published in 2016 in Nature Climate Change. The right half extrapolates radiative forcing to achieve and sustain net zero heating from 2060. The bands are roughly drawn. It is possible that the main cooling work shown as SAI could be partly replaced by other methods. Regards Robert Tulip -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/CarbonDioxideRemoval/09aa01d95626%243c8cb2a0%24b5a617e0%24%40rtulip.net <https://groups.google.com/d/msgid/CarbonDioxideRemoval/09aa01d95626%243c8cb2a0%24b5a617e0%24%40rtulip.net?utm_medium=email&utm_source=footer> . -- You received this message because you are subscribed to the Google Groups "Planetary Restoration" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected] <mailto:[email protected]> . To view this discussion on the web visit https://groups.google.com/d/msgid/planetary-restoration/CABjtO1dvPpMFJDx_jcY6kX2F7KvEqDa%2BiojL9dokLYVDAx441A%40mail.gmail.com <https://groups.google.com/d/msgid/planetary-restoration/CABjtO1dvPpMFJDx_jcY6kX2F7KvEqDa%2BiojL9dokLYVDAx441A%40mail.gmail.com?utm_medium=email&utm_source=footer> . -- 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/020201d95768%241e855490%245b8ffdb0%24%40rtulip.net.
