Reviewer 2 does geoengineering

Would a whiter sky be noticeable, under SAI geoengineering? Ansar Lemon discusses what humans and animals could see. Paper: Under a not so white sky: visual impacts of stratospheric aerosol injection - Ansar Lemon et al 2025 Environ. Res. Lett. 20 024060 DOI 10.1088/1748-9326/ada2ae A link to his music is here https://youtu.be/EpQ7rnQTDDU?si=ubVwa7p45uZ9mw_q

Are you allowed to throw alkaline minerals into the sea? Ashwin Murthy explains how to do Ocean Alkalinity Enhancement, without ending up in jail. Ashwin Murthy, Korey Silverman-Roati & Romany M. Webb, State Authority to Regulate Ocean Alkalinity Enhancement, Sabin Center for Climate Change Law, Columbia Law School, December 2024 (2024). Available at: https://scholarship.law.columbia.edu/sabin_cli...

David McEvoy discusses expert opinions on SRM. What do they think, and how do we know? The strategic and governance implications of solar radiation modification: perspectives from delegates of international climate negotiations Todd L Cherry et al 2025 Environ. Res. Lett. 20 014053 DOI 10.1088/1748-9326/ad9d62

Thomas Hahn discusses his paper on historical emissions and responsibility for them. Hahn, T., Morfeldt, J., Höglund, R. et al. Estimating countries’ additional carbon accountability for closing the mitigation gap based on past and future emissions. Nat Commun 15, 9707 (2024). https://doi.org/10.1038/s41467-024-54039-x

Is it too late for SRM to save South American glaciers? Alfonso Fernandez discusses his paper on the impact of SRM on the glaciers of the Andes. Fernández, A., Manquehual-Cheuque, F. & Somos-Valenzuela, M. Impact of Solar Radiation Management on Andean glacier-wide surface mass balance. npj Clim Atmos Sci 7, 257 (2024). https://doi.org/10.1038/s41612-024-00807-x

AGU Ethical Framework Principles for SRM research Tyler Felgenhauer, Duke University https://news.agu.org/press-release/ethical-framework-climate-intervention-research/

Juliet Kirby explains how gentoo.earth uses AI to match carbon removal buyers and sellers. Despite @geoengineering1 trying his best to wind her up for lulz, she doesn't break character. NB this isn't paid promotion; gentoo hasn't sponsored this episode. No penguins (gentoo or otherwise) were harmed in the making of this episode.

Ron Baiman discusses his expansive paper summarising all known SRM and other direct climate cooling techniques https://academic.oup.com/oocc/article/4/1/kgae014/7731760 Plus his letter to the International Maritime Organization https://academic.oup.com/oocc/article/4/1/kgae008/7706251

Benjamin Hofbauer discusses 3 papers from his PhD, on the ethics of Solar geoengineering. Hofbauer, B. (2023). Systemic risks and solar climate engineering research. Integrating technology ethics into the governance of systemic risks. Journal of Risk Research, 26(12), 1383–1395. https://doi.org/10.1080/13669877.2023.2288010 Hofbauer, B. (2023). Normative Uncertainty in Solar Climate Engineering Re...

Charly Moras explains how grain size affects reaction kinetics in ocean alkalinity enhancement. Paper:- Effects of grain size and seawater salinity on magnesium hydroxide dissolution and secondary calcium carbonate precipitation kinetics: implications for ocean alkalinity enhancement https://egusphere.copernicus.org/preprints/2024/egusphere-2024-645/

In this spooky Halloween episode, @geoengineering1 and Ken Buesseler investigate alleged sightings of Ocean Iron Fertilisation - which is rumoured to have risen from its unquiet grave. Paper: Next steps for assessing ocean iron fertilization for marine carbon dioxide removal. https://www.frontiersin.org/journals/climate/articles/10.3389/fclim.2024.1430957

Kai Jeggle explains to @geoengineering1 how off-target effects of cirrus cloud thinning mean that it can never be used effectively. Paper; Jeggle, K., Neubauer, D., Binder, H., and Lohmann, U.: Cirrus formation regimes – Data driven identification and quantification of mineral dust effect, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-2559, 2024.

Got wood? Looking for somewhere to stick it? Ning Zeng can solve your problem! @geoengineering1 learns all about how to do it properly. Zeng, N., Hausmann, H. Wood Vault: remove atmospheric CO2 with trees, store wood for carbon sequestration for now and as biomass, bioenergy and carbon reserve for the future. Carbon Balance Manage 17, 2 (2022). https://doi.org/10.1186/s13021-022-00202-0

Do not adjust your set; the fidelity of this recording is particularly poor. Luna Geerts and @geoengineering1 discuss coastal enhanced weathering of olivine. The paper is/was open to review, here. https://egusphere.copernicus.org/preprints/2024/egusphere-2024-1824/

What would a mid-century polar geoengineering program look like? What airports and aircraft would be needed - and at what cost? Wake Smith answers all these questions.

How does SAI affect extra-tropical cyclones? Michelle Simões Reboita explains during a tight interview slot, but @geoengineering1 fails to understand (it takes him at least an hour to understand ANYTHING). With fluency approaching that of the Trump Biden debate, he stumbles through the episode, only occasionally realising where he is and what he's doing. Can anyone do a better job? Please tweet us...

What control can we exercise over MCB? Should it be confined to small, climatically sensitive areas - or expanded at great cost, to minimise inter-regional disparities? Walker Lee discusses the issue in depth. (See PT 2 for a discussion on disability and diversity). Jack's first paper: https://doi.org/10.22541/essoar.171322700.02512514/v1 Jack's second paper: https://doi.org/10.22541/essoar.171201...

We've extracted this very interesting discussion from Walker Lee's new episode, because a) it's a standalone section and b) the main episode was already quite long. Here, Walker Lee describes in vibrant and very personal terms his own academic journey, touching on important issues of ideological diversity and disability discrimination. It's not trad R2, but we liked it. Enjoy!

Moritz Günther tries valiantly to get @geoengineering1 to understand the atmospheric dynamics of SAI's impacts on the warm pool, but it's rather like watching him trying to train a baboon to use Photoshop - there's some engagement, and the occasional flash of comprehension before it all gets too much for him. NB this is the FIXED version - the original had a couple of important errors of sign from...

William Morrissey explains how SAI could lead to conflict and counter-geoengineering. @geoengineering1 isn't convinced it will all end so badly. Avoiding atmospheric anarchy: Geoengineering as a source of interstate tension William Morrissey https://doi.org/10.1177/27538796231221597

Roll up! Roll up! Grab your buckets, and get ready to do a science! Bach is back (again) to discuss institutional collaboration and citizen science in OAE. Bach, L. T., Ferderer, A. J., LaRoche, J., and Schulz, K. G.: Technical note: Ocean Alkalinity Enhancement Pelagic Impact Intercomparison Project (OAEPIIP), EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-692, 2024 Identifying the...

How do you establish and grow a DAC company? Anca Timofte has utilised a career leg-up from Climeworks to start her own DAC outfit, with some pretty fancy chemistry. @geoengineering1 gets the lowdown on how she did it - and what the future challenges are https://theholocene.co/

Is the supply of carbon removal fundamentally limited, and how should it be allocated? Comrade Allanah Paul from Bellona sends @geoengineering1 to the reeducation camps in an attempt to expunge his bourgeois thinking. report: https://www.negemproject.eu/wp-content/uploads/2023/11/D6.5_Who-should-use-NETPS.pdf

Gunter Flipkens explains why everyone is worried about heavy metals leaching from olivine coastal weathering experiments. Then he explains how he tests the exact toxicity to animals, plus how to reduce it. Thesis link https://www.researchgate.net/publication/379406915_Coastal_enhanced_olivine_weathering_for_climate_change_mitigation_investigating_the_CO2_sequestration_potential_and_ecotoxicologica...

Christian Claudel comes on to explore the issues around using drones to distribute MCB particles. These are made by anti-solvent precipitation (much like diluting Ricard spirit). Despite @geoengineering1 being AN ACTUAL AUTHOR on the paper he still finds plenty of opportunities for nitpicking. Paper: Marine-cloud brightening: an airborne concept Christian Claudel, Andrew John Lockley, Fabian Hoffm...