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 Günther. If you've listen to the old version, pls see this important author note "the part where I ...
May 04, 2024•1 hr 27 min
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
Apr 16, 2024•1 hr 25 min
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 Most (Cost-)Efficient Regions for CO2 Removal With Iron Fertilization in the Southern Ocean Lennart ...
Apr 13, 2024•50 min
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/
Apr 07, 2024•1 hr 22 min
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
Apr 06, 2024•1 hr 6 min
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_ecotoxicological_risks
Apr 02, 2024•49 min
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 Hoffmann and Younan Xia DOI 10.1088/2515-7620/ad2f71
Mar 12, 2024•1 hr 38 min
Michael Fuhr gives @geoengineering1 news on what happens when you throw rocks in the sea (yawn). Then they go on a massive rant about how Gen Z academics don't know how to party anymore (yey!). But which one of them ended a conference locked in a laundry cage being rolled through a hotel foyer? Find out, inside. Paper https://doi.org/10.3389/fclim.2024.1338556 This article is part of the Research Topic Quantifying Carbon Removal by Negative Emissions Technologies Alkaline mineral addition to ano...
Mar 12, 2024•1 hr 12 min
What could be the eventual scale of the CDR market? What technologies will it use? And how do choices made today affect where it ends up? Robert Hoglund discusses with @geoengineering1 Some works discussed CDR.fyi annual report https://www.cdr.fyi/blog/2023-year-in-review Carbon removal is not a finite resource https://marginalcarbon.substack.com/p/carbon-removal-is-not-a-finite-resource Emergent methane mitigation and removal approaches: A review Ishita Mundra, Andrew Lockley https://doi.org/10...
Mar 09, 2024•1 hr 28 min
Joshua Schwarz explains how dispersing ice nucleating particles in one tiny region of the tropical tropopause layer off Northern Australia can address around 1pc of global warming. He also discusses his involvement in the SABRE stratospheric flights. Paper: Considering intentional stratospheric dehydration for climate benefits DOI: 10.1126/sciadv.adk0593 Other papers discussed Pyrocumulonimbus affect average stratospheric aerosol composition J. M. KATICH DOI: 10.1126/science.add3101 Marine-cloud...
Mar 08, 2024•1 hr 23 min
What is nature? Does it matter beyond its direct usefulness? Do animals only have rights if they're conscious? When did man become morally responsible for environmental degradation? When can and should we fiddle with the natural world? Elliott Woodhouse explains the differing views to @geoengineering1. A blog post is available, summarising his PhD https://www.sheffield.ac.uk/lc3m/blogs/phd-spotlight-elliott-woodhouses-ethics-climate-engineering
Jan 22, 2024•1 hr 23 min
NPC vs IAM. Oliver Perkins explains why simple agent-based models (non playable characters, if you like) might outperform the integrated assessment models that have led to such outlandish predictions for CDR. Paper: Toward quantification of the feasible potential of land-based carbon dioxide removal https://doi.org/10.1016/j.oneear.2023.11.011
Jan 19, 2024•1 hr 8 min
The highly prolific Chris Jones thoroughly intimidates the normally boisterous @geoengineering1, while discussing sorbents that can tolerate a wide range of climate conditions. Paper Sub-Ambient Temperature Direct Air Capture of CO2 using Amine-Impregnated MIL-101(Cr) Enables Ambient Temperature CO2 Recovery https://doi.org/10.1021/jacsau.1c00414 Here's some more links about Chris and the subjects discussed in this episode. DAC bibliometric analysis https://www.sciencedirect.com/science/article/...
Jan 09, 2024•1 hr 29 min
Gloria Reithmaier talks to @geoengineering1 about coastal blue carbon, work/life balance, and being a mum in academia. Paper: Reithmaier, G.M.S., Cabral, A., Akhand, A. et al. Carbonate chemistry and carbon sequestration driven by inorganic carbon outwelling from mangroves and saltmarshes. Nat Commun 14, 8196 (2023). https://doi.org/10.1038/s41467-023-44037-w
Jan 03, 2024•51 min
Celebrate Xmas day with Holly, discussing Solar geoengineering research in the global public interest: A proposal for how to do it https://www.sciencedirect.com/science/article/pii/S2590332223005481
Dec 25, 2023•1 hr 21 min
How can you make a sunshade stay in place? How can you make it beam down solar power to Earth? @geoengineering1 finds out from Tharshan Maheswaran. Paper - International planetary sunshade concept with a function-integrated and scalable support structure based on coreless filament winding DOI 10.1088/1742-6596/2526/1/012113
Dec 23, 2023•1 hr 16 min
Should the army be allowed to blow people up with a volcano? If your geothermal power plant triggers an eruption, is that just a risk of doing business? Should we fiddle with volcanoes to make them safer? Is even researching this opening a can of worms? Gideon Futurman interviews Michael Cassidy (giving @geoengineering1 a month long editing nightmare, but with results we hope you'll like). Paper: The Ethics of Volcano Geoengineering Michael Cassidy, Anders Sandberg, Lara Mani https://doi.org/10....
Dec 13, 2023•1 hr 4 min
"Good afternoon, Reviewer 2 listeners. Some of us at the Healthy Planet Action Coalition (www.healthyplanetaction.org) have noticed that a few months ago Reviewer 2 experienced a security breach orchestrated by archrival Challenging Climate. Now normally we would refrain from taking advantage of poor Reviewer 2, but we sensed an opportunity that we couldn’t resist and decided to jump into the breach with this discussion about the recent report of the Climate Overshoot Commission (COC) between Ch...
Nov 21, 2023•1 hr 4 min
Want to know *exactly* how Pinatubo affected ozone? After a marathon 6h edit, @geoengineering1 has finally managed to get this Yifeng Peng interview sounding OK. Paper: Perturbation of Tropical Stratospheric Ozone Through Homogeneous and Heterogeneous Chemistry Due To Pinatubo https://doi.org/10.1029/2023GL103773
Oct 28, 2023•48 min
Manon Simon discusses her thesis on the legal overlap between cloud seeding and MCB. What can we learn and apply from decades of cloud seeding regulation?
Oct 28, 2023•1 hr 5 min
Liam Bullock talks about his Horizon-funded work on slags, tailings and overburden. How can these different wastes be used for CO2 removal? International Journal of Greenhouse Gas Control Volume 129, October 2023, 103990 Experimental investigation of multiple industrial wastes for carbon dioxide removal strategies https://doi.org/10.1016/j.ijggc.2023.103990
Oct 20, 2023•49 min
Jesse Reynolds shows how many SRM papers overestimate risks and underestimate benefits. Paper: "Communication of Solar Geoengineering Science: Forms, Examples, and Explanation of Skewing" https://journals.sagepub.com/doi/10.1177/20530196221095569 More papers are at https://jreynolds.org/
Sep 29, 2023•1 hr
The Radiative Forcing Pattern Effect on Climate Sensitivity https://essopenarchive.org/users/535851/articles/655683-the-radiative-forcing-pattern-effect-on-climate-sensitivity
Sep 25, 2023•1 hr 6 min
Emily Sheppard talks about how the nutrients used by seaweed affect its usefulness for CDR. She then plays a violin made of seaweed. Paper: https://onlinelibrary.wiley.com/doi/10.1111/jpy.13381 Kelp violin link: https://www.youtube.com/watch?v=e2nHGNF_Ar0
Sep 21, 2023•57 min
How can countries share the cost of cleaning up historic emissions? A croaky Reviewer 2 finds out from Asbjørn Torvanger. What If Country Commitments for CO2 Removal Were Based on Responsibility for Historical Emissions? by Asbjørn Torvanger CICERO Center for International Climate Research, Gaustadalléen 21, 0349 Oslo, Norway Energies 2023, 16(11), 4350; https://doi.org/10.3390/en16114350
Sep 09, 2023•1 hr 3 min
Andrés Clarens discusses how the CDR industry will spread throughout the US. Paper: Regional implications of carbon dioxide removal in meeting net zero targets for the United States https://iopscience.iop.org/article/10.1088/1748-9326/aced18
Sep 06, 2023•1 hr 16 min
Two guests (with extremely complicated names) discuss the ludicrousest, amazingest paper we've ever had on the show. Yes, they're seriously asking: can we use spider's silk to make giant diffraction gratings for use in space? Amira Omer Mohamed Ahmed Salim Karlsson and Johanna D'Ciofalo Khodaverdian's bachelors' thesis is available at https://www.diva-portal.org/smash/record.jsf?pid=diva2%3A1780558&dswid=-248 They were joined by their supervisor Christer Fuglesang, to make sure Reviewer 2 wa...
Aug 25, 2023•1 hr 3 min
Lennart Bach returns to discuss his modelling paper on ocean / atmosphere exchange of CO2 with @geoengineering1. Also included is enlightening discussion on getting drunk on expensive beer, whether Tasmania is any good, and if 6 peer reviewers really is enough. Paper: 'Identifying the most (cost-)efficient regions for CO2 removal with Iron Fertilization in the Southern Ocean" (https://www.authorea.com/doi/full/10.22541/essoar.167979670.07996683).
Aug 13, 2023•1 hr 24 min
How does mineral dust affect the climate? (Slight cooling, but it's complicated) What do background variations in dust levels teach us about the likely effects of SRM & CDR? (Lots) Should we try to reduce anthropogenic mineral dust? (Probably not) How does reindeer poo fit into all of this? (You'll have to listen) Jasper Kok speaks to @geoengineering1 about his paper "Mineral dust aerosol impacts on global climate and climate change." https://www.researchgate.net/publication/367207625_Minera...
Aug 02, 2023•59 min
How do you model aerosol dispersal from an aircraft? Then, how do you integrate that into a climate model? Hongwei Sun explains his thesis to @geoengineering1 Paper: Developing a Plume-in-Grid Model for Plume Evolution in the Stratosphere Hongwei Sun, Sebastian Eastham, David Keith https://doi.org/10.1029/2021MS002816
Jul 30, 2023•1 hr 22 min
