The difficult bit is getting £100m to design and build a new type of plane.
If you really can do geoengineering with a truck bomb, it puts it in the realm of hobbyists. Bulk mining explosives are about £2k/ton, sulfur is £30/ton, oxygen costs around £70/ton, charcoal is £200/t So blasting 1t sulphur will cost you maybe £100 for the primary chemicals and then maybe £20 for the charcoal lifting powder, if the ANFO isn't sooty enough. You'd need a bursting/initiation charge of perhaps 5pc by mass ANFO, so that's £200. Add in another £50 a shot for bulk bags, detonators and ropes to suspend the bag (you don't want to actually blow up your truck), and you're looking at under £400 per 1t of sulfur blasted. Even if only half the sulfur makes it to the stratosphere, it's £800/t penetrated. Most people have that in their current account, at least on payday. You might need to do a bigger shot to get it up (maybe 100t charges), but it's still not an expensive approach - either per ton, or per shot. Andrew On Fri, 25 Jun 2021, 21:57 Jessica Gurevitch, < [email protected]> wrote: > I think it would be difficult to get strong public support for this > mechanism, even beyond the challenge of getting (any) public support for > SAI. By "difficult" I mean, good luck with that. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Jessica Gurevitch > Distinguished Professor > Department of Ecology and Evolution > Stony Brook University > Stony Brook, NY 11794-5245 USA > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > On Fri, Jun 25, 2021 at 4:19 PM Andrew Lockley <[email protected]> > wrote: > >> Pengfei appears on the reviewer 2 podcast to discuss this paper >> >> >> https://open.spotify.com/episode/2qNxBiuHJI5zWET2GXSy9u?si=62YxobEeT7CjNtjch2cWuw&utm_source=native-share-menu&dl_branch=1 >> >> I'm curious as to whether one could implement this idea using truck >> bombs, or possibly air launched bombs like the MOAB >> https://en.m.wikipedia.org/wiki/GBU-43/B_MOAB >> >> Here's a video of a sulphur based thermobaric charge. The plume isn't >> very sooty, but that can be fixed https://youtu.be/xsWrfWJOu4Q >> >> I'm wondering if you could mix up sulphur powder with inexpensive ANFO >> booster, and possibly with liquid oxygen, to make a sooty mushroom cloud >> that is dark enough to lift (in sunlight) to the stratosphere. >> >> Getting the mushroom cloud out the boundary layer should be feasible. >> Here's a combat video showing a plume that probably makes it >> https://youtu.be/7GzDceVdpMI >> Here's another combat video, showing differently formulated explosives, >> giving a much darker plume https://youtu.be/v9r0u3dY48o >> >> I'd welcome ideas on this, particularly from chemists and engineers with >> explosives experience. >> >> Andrew >> >> >> On Sat, 15 May 2021, 20:35 Andrew Lockley, <[email protected]> >> wrote: >> >>> >>> https://advances.sciencemag.org/content/7/20/eabe3416 >>> >>> Toward practical stratospheric aerosol albedo modification: >>> Solar-powered lofting >>> View ORCID ProfileRu-Shan Gao1,†, View ORCID ProfileKaren H. >>> Rosenlof1,*,†, View ORCID ProfileBernd Kärcher2, View ORCID ProfileSimone >>> Tilmes3, Owen B. Toon4, View ORCID ProfileChristopher Maloney1,5 and >>> Pengfei Yu6,* >>> See all authors and affiliations >>> >>> Science Advances 14 May 2021: >>> Vol. 7, no. 20, eabe3416 >>> DOI: 10.1126/sciadv.abe3416 >>> Article >>> Figures & Data >>> Info & Metrics >>> eLetters >>> PDF >>> Abstract >>> Many climate intervention (CI) methods have been proposed to offset >>> greenhouse gas–induced global warming, but the practicalities regarding >>> implementation have not received sufficient attention. Stratospheric >>> aerosol injection (SAI) involves introducing large amounts of CI material >>> well within the stratosphere to enhance the aerosol loading, thereby >>> increasing reflection of solar radiation. We explore a delivery method >>> termed solar-powered lofting (SPL) that uses solar energy to loft CI >>> material injected at lower altitudes accessible by conventional aircraft. >>> Particles that absorb solar radiation are dispersed with the CI material >>> and heat the surrounding air. The heated air rises, carrying the CI >>> material to the stratosphere. Global model simulations show that black >>> carbon aerosol (10 microgram per cubic meter) is sufficient to quickly loft >>> CI material well into the stratosphere. SPL could make SAI viable at >>> present, is also more energy efficient, and disperses CI material faster >>> than direct stratospheric injection >>> >> -- >> 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-06eGrYHaB_y2Ru1cFa9OWTMUjgz3c0kNp3F7_5k4Riqkw%40mail.gmail.com >> <https://groups.google.com/d/msgid/geoengineering/CAJ3C-06eGrYHaB_y2Ru1cFa9OWTMUjgz3c0kNp3F7_5k4Riqkw%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]. 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