You may be interested in this. I considered some pretty speculative things to prevent or mollify a supervolcanic eruption, but the volume of the stratosphere is so enormous that I think cleaning it would be very challenging.
Yeah, I havenāt looked into this much but I think goal would be getting as much soot as possible before it spread out across the whole stratosphere. For instance, dumping coagulant into the rising smoke plume so that it got carried up with the smoke could be a good option if one can respond while a city fire is still burning, as the coagulant is then going to get mixed in with most of the soot. IIRC from Robockās paper it also takes a while (weeks/āmonths) for the soot to completely spread out and self-loft into the upper stratosphere, so that gives more time to respond while itās still fairly concentrated around the sources. Determining what an effective response would be at that stage is kind of the aim of the projectāone suggestion would be to send up stratospheric weather balloons with high-voltage electrostatic fields (not 100% sure but I expect soot aerosol would be charged and could be electrostatically attracted) under areas of dense soot.
You may be interested in this. I considered some pretty speculative things to prevent or mollify a supervolcanic eruption, but the volume of the stratosphere is so enormous that I think cleaning it would be very challenging.
Yeah, I havenāt looked into this much but I think goal would be getting as much soot as possible before it spread out across the whole stratosphere. For instance, dumping coagulant into the rising smoke plume so that it got carried up with the smoke could be a good option if one can respond while a city fire is still burning, as the coagulant is then going to get mixed in with most of the soot. IIRC from Robockās paper it also takes a while (weeks/āmonths) for the soot to completely spread out and self-loft into the upper stratosphere, so that gives more time to respond while itās still fairly concentrated around the sources. Determining what an effective response would be at that stage is kind of the aim of the projectāone suggestion would be to send up stratospheric weather balloons with high-voltage electrostatic fields (not 100% sure but I expect soot aerosol would be charged and could be electrostatically attracted) under areas of dense soot.