There are a number of posts, presentations and reports which have claimed that the SRM approach of stratospheric aerosols "will definitely work" because it would simulate how Mt. Pinatubo's eruption cooled the planet.
I maintain that not only is that claim false, but it is making the search for other promising SRM methods seem much less urgent, when in fact the opposite is true. The urgent truth is that more promising SRM methods need to be identified ASAP by engaging a much wider participation from the global science and engineering communities (among other experts). After all, aren't the concepts of Sulfate Aerosols and Marine Cloud Brightening both over 20 years old? What does that say about the success of geoengineering efforts since then? The claim that sulfate aerosols would cool the planet like Mt. Pinatubo is far too simplified, and there are far too many unknowns at this point to understand the aerosol's true effect. Unknowns include everything from what to inject to how to deliver it, how to properly disperse it, the resulting particulate size and resulting albedo, the fallout time and the effect on lower level clouds, as well as the damaging effect on the ozone layer and the resulting acid rain. I have been calling for a global solicitation of SRM concepts with this group for over 3 years now. I'm afraid that we are now running out of time- so it's more urgent than ever that this gets done. Please reply with comments- thanks. Mark Massmann -- 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 geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out.
