Reviewer 2 does geoengineering

Reviewer 2 does geoengineering

By Andrew Lockley

Reviewer 2 quibbles with actual experts in Solar Radiation Modification and Carbon Dioxide Removal, before rejecting their work on spurious, spiteful and capricious grounds. You'd expect nothing less from R2.
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Biotech in CDR - Reginato

Reviewer 2 does geoengineeringMar 22, 2025
00:00
54:15
Risk-risk trade-offs - Felgenhauer
May 10, 202557:46
SRM, US & China - Nielsen
May 04, 202501:34:27
Solar thermal DAC - Prats Salvado

Solar thermal DAC - Prats Salvado

Enrico Prats Salvado discusses the benefits and challenges of using the sun's heat for DAC desorb. Paper Prats-Salvado, E., Monnerie, N. & Sattler, C. Powering Direct Air Capture: Overview of Existing Concepts and the Overlooked Role of Concentrated Solar Thermal Technologies. Curr Sustainable Renewable Energy Rep 12, 8 (2025). https://doi.org/10.1007/s40518-025-00255-y
Apr 24, 202501:12:46
Water alternating gas injection - Nelson (&dog)
Apr 13, 202501:34:32
Biotech in CDR - Reginato
Mar 22, 202554:15
Get in the sea! Sinkco x Riverse — Boehman & Dorr

Get in the sea! Sinkco x Riverse — Boehman & Dorr

Can we just throw carbon in the sea - like a mobile phone with incriminating evidence on? Brenna Boehman and Erica Dorr from Sinkco and Riverse come on to discuss their Marine Carbon Burial Methodology with @geoengineering1
Mar 18, 202501:05:34
Octavia carbon, Kenyan DAC - Freimüller

Octavia carbon, Kenyan DAC - Freimüller

Martin Freimüller introduces Octavia Carbon, explaining how they're making DAC work in Kenya's Great Rift Valley. Hosted by @geoengineering1
Mar 07, 202501:00:09
Calychar hydrochar - Suleman
Feb 27, 202501:00:52
COVID policy vs SRM policy - Patrick
Feb 23, 202501:24:42
Sky whitening - Lemon
Feb 08, 202501:13:10
OAE legality - Murthy

OAE legality - Murthy

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_climate_change/237
Jan 12, 202501:16:30
SRM experts' opinions - McEvoy

SRM experts' opinions - McEvoy

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
Jan 05, 202501:00:43
Historic emissions & CDR - Hahn
Dec 28, 202444:30
Andean glaciers & SRM - Fernandez

Andean glaciers & SRM - Fernandez

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
Dec 12, 202401:00:19
AGU SRM research ethics - Felgenhauer
Nov 29, 202401:02:29
Gentoo.earth - Kirby

Gentoo.earth - Kirby

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.
Nov 18, 202431:53
Direct climate cooling overview - Baiman
Nov 10, 202401:03:32
SRM ethics - Hofbauer

SRM ethics - Hofbauer

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 Research Governance. Ethics, Policy & Environment, 1–20. https://doi.org/10.1080/21550085.2023.2216148 Benjamin Hofbauer. Techno-moral change through solar geoengineering: How geoengineering challenges sustainability. Prometheus. 2022. Vol. 38(1). DOI: 10.13169/prometheus.38.1.0082
Oct 30, 202438:52
Grain size in OAE - Moras
Oct 23, 202452:53
Is OIF undead? - Buesseler
Oct 15, 202458:15
Is cirrus thinning dead? Jeggle

Is cirrus thinning dead? Jeggle

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.
Oct 06, 202457:50
Wood Vaulting - Zeng
Sep 28, 202443:37
Coastal enhanced weathering - Geerts
Sep 21, 202445:50
Near term Arctic SRM - Wake Smith

Near term Arctic SRM - Wake Smith

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.
Sep 15, 202401:22:22
Extra-tropical cyclones - Reboita
Jul 04, 202444:20
Controlling MCB - Walker Lee Part 1
May 12, 202401:16:36
Disability & ideological diversity in academia - Walker Lee, Part 2

Disability & ideological diversity in academia - Walker Lee, Part 2

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!
May 12, 202428:13
Warm pool & SAI - Günther (FIXED)

Warm pool & SAI - Günther (FIXED)

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 say it's destabilising... should actually be stabilising... roughly at 1:10:30 - 1:11:00. The part where I say we would need less aerosol if the Brewer-Dobson circulation mechanism exists but we would actually need more is around 1:21:30 - 1:22:00." (timestamps from old episode) And BTW, props to him for a) checking b) fessing up. Science progresses one correction at a time.
Günther, M., Schmidt, H., Timmreck, C., and Toohey, M.: Why does stratospheric aerosol forcing strongly cool the warm pool?, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-429, 2024.
May 04, 202401:27:07
SAI and international conflict - Morrissey
Apr 16, 202401:24:53
Mass participation OAE tests - Bach
Apr 13, 202450:30
Holocene DAC, chemistry & biz - Timofte
Apr 07, 202401:22:10
Who gets to use CDR? - Bellona; Paul
Apr 06, 202401:06:18
Olivine ecotoxicity - Flipkens
Apr 02, 202448:46
MCB with drones - Claudel

MCB with drones - Claudel

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, 202401:37:40
Littoral weathering & academic culture - Fuhr
Mar 12, 202401:12:26
Future of CDR - Hoglund
Mar 09, 202401:28:07
Stratospheric dehydration - Schwarz

Stratospheric dehydration - Schwarz

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 brightening: an airborne concept
Christian Claudel, Andrew John Lockley, Fabian Hoffmann and Younan Xia
DOI 10.1088/2515-7620/ad2f71
Mar 08, 202401:22:45
Messing with nature - Woodhouse
Jan 22, 202401:22:34
Agent based models - Perkins
Jan 19, 202401:07:46
Sorbents for all seasons - Jones

Sorbents for all seasons - Jones

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/pii/S2772826922000086 https://www.sciencedirect.com/science/article/pii/S277282692300010X DirACC Publication list (GT DAC Center) https://sites.gatech.edu/dac-center/publications/ Jones web page: https://jones.chbe.gatech.edu/dr-jones/ Jones Google Scholar page: https://scholar.google.com/citations?user=ltWKpYgAAAAJ&hl=en Jones Wikipedia page: https://en.wikipedia.org/wiki/Christopher_W._Jones
Jan 09, 202401:29:06
Blue carbon - Reithmaier
Jan 03, 202451:26
Festive Holly (Jean Buck)
Dec 25, 202301:21:13
How to support a sunshade - Maheswaran

How to support a sunshade - Maheswaran

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, 202301:16:23
Ethics of Volcano Geoengineering
- Cassidy
Dec 13, 202301:03:54
HPAC takeover! Overshoot commission - Field

HPAC takeover! Overshoot commission - Field

"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 Chris Field, Stanford Professor and advisor to the COC, and Mike MacCracken, HPAC Steering Circle member and former Executive Director of the Office of the US Global Change Research Program.

The Climate Overshoot Commission report "Reducing the Risks of Climate Overshoot" was released on September 14:
www.overshootcommission.org/_files/ugd/0c3b70_bab3b3c1cd394745b387a594c9a68e2b.pdf. While the COC did not solicit public input, it did hold a series of meetings to learn and discuss the full range of questions facing the international community in dealing with the risk of climate overshoot. Their 4-part high-level recommendations were summarized in the acronym CARE, for Cut (emissions), Adapt, Remove (CO2), and Explore (SRM). Specifically, its recommendation on climate intervention advocated expanding research while placing "a moratorium on the deployment of solar radiation modification and large-scale outdoor experiments that would carry risk of significant trans-boundary harm. "
Nov 21, 202301:04:22
Pinatubo’s effect on ozone - Peng
Oct 28, 202347:41
Cloud seeding law - Simon

Cloud seeding law - Simon

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, 202301:05:09
"Year of the slags" - Bullock
Oct 20, 202349:23
Can we trust SRM papers? Reynolds
Sep 29, 202301:00:24
Does SRM's location affect global temperature? Zhang
Sep 25, 202301:05:53