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Research Paper: The Liability of Greenhouse Gas Emitters for Harm Due to Solar Geoengineering (Taylor & Francis)
Opinion Piece: Injecting particulates into the atmosphere isn’t a magical fix for the climate crisis (The Guardian)
Perspective: Should SRM Be Seen as a Serious Security Issue? (SRM360)
Upcoming Event: Deliberately Cooling the Planet. Could we? Should we? Would we? (RMetS)
Job Opportunity: 2026 Summer Polsky Research Fellowship - Research Assistant with Dr. Peter Irvine, Department of Geophysical Sciences (University of Chicago)
Podcast: Ice, ice, maybe: should the Arctic be refrozen? (The Intelligence)
Video: SRM Research: Science, Risk & Responsibility with Dakota Gruener (Climate Chat)
Read on to unpack more updates:
Coral reef exposure increases aerosol and cloud condensation nuclei over the Great Barrier Reef - Preprint
Authors: Juha Sulo, Magdalena Okuljar, Joel Alroe, Zijun Li, et al.
Synopsis: This study presents multi-year in situ aerosol measurements over the Great Barrier Reef (GBR), revealing for the first time that coral reefs directly contribute to local aerosol loading. While aerosol levels generally reflect a clean coastal environment dominated by long-range transport, local reef sources increase ultrafine particles. Cloud condensation nuclei are mainly driven by accumulation and Aitken mode particles, with Aitken particles contributing up to 6%.
The Liability of Greenhouse Gas Emitters for Harm Due to Solar Geoengineering
Authors: Mac Willners
Synopsis: This article challenges the view that solar geoengineering deployers alone should compensate for resulting harms under the Polluter Pays Principle. It proposes an alternative Emitter Pays Principle, arguing that non-deploying greenhouse gas emitters share liability because they helped create the conditions motivating deployment. This approach is especially compelling when solar geoengineering is framed as a limited, defensive response to climate risk.
The Degrees Initiative - Expansion Grants: Scaling Global South leadership in SRM science
DSG - How SRM Intersects with Geopolitics and Security
DSG - CIN Stories: Strengthening Early-Career Collaboration on Climate Intervention
SRM360 - Mixed-Phase Cloud Thinning
Climate Wire - Nonprofit throws its weight behind Arctic geoengineering
Stony Brook University - Collaborative for the Earth Hosts First Screening of ‘Plan C for Civilization’
The Guardian - Injecting particulates into the atmosphere isn’t a magical fix for the climate crisis
LinkedIn - ACIRH Wrap-Up
My Joy Online - Africa must lead climate intervention conversation – Experts
Matthias Honegger - Call for Balance on SRM – in Research and Assessment
SRM360 - Different Takes: Should SRM Be Seen as a Serious Security Issue?
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2026 Summer Polsky Research Fellowship - Research Assistant with Dr. Peter Irvine, Research Assistant Professor, Department of Geophysical Sciences
“As the global community struggles to limit global warming, interest is growing in interventions to lower global temperatures. Stratospheric Aerosol Injection (SAI), a method of stabilizing temperatures by releasing reflective particles into the upper atmosphere, appears to offer a practical means of doing so. SAI would offer some limited control over climate outcomes, with the total amount of cooling a choice, as well as the relative cooling of high and low latitudes. To understand whether SAI should be pursued will require a rigorous risk-risk analysis of the trade-offs between the novel environmental risks of different SAI scenarios and the “baseline risk” of a rapidly warming world.
For this studentship, you will contribute to an ongoing research project to make a comprehensive assessment of SAI’s potential consequences. This core project is focused on making a multi-model comparison of the response to standard scenarios of SAI, while your project will explore how that response differs for alternative SAI scenarios in a single climate model, the community earth system model. Drawing on existing climate model simulations of SAI, you will apply analytical tools in the python programming language to extend the core analysis to these alternative scenarios.
The ultimate goal is to identify for which variables and in which regions SAI could work well and where it could worsen the impacts of climate change. This work will help provide a vital, evidence-based foundation for an informed discussion of SAI as a climate policy option.”
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24 February | Online - Live Discussion: How Might Solar Geoengineering Affect Global Security? by SRM360
02 March | Online - MEERTalk with Robert Tulip by MEER SRM
04 March | Oxford University - The unknowability of solar geoengineering and why it matters by OCRN Annual Lecture
9-13 March 2026 | Kyoto, Japan - CMIP Community Workshop (CMIP26)
17-19 March | Tokyo, Japan - Sixteenth GeoMIP 2026 Meeting by Alan Robock and Daniele Visioni
18 March | University of Cambridge - Climate Repair: Hope or Hype? by Centre for Climate Repair
25 March | Online - Deliberately Cooling the Planet. Could we? Should we? Would we? by RMetS (NEW)
03-08 May | Vienna, Austria & Online - EGU26
13-15 May | University of Nottingham - IAA Planetary Sunshade Workshop by Planetary Sunshade Foundation
28 – 29 May | Belgium - International Forum on Solar Radiation Modification Research Governance by Co-Create
02-04 June | Rwanda - The IAF Global Space Conference on Climate Change 2026 - Uniting Space and Earth for Climate Resilience
20-21 June | United States - Bridging the Knowledge Gaps in Climate Engineering with Experiments, Models, and Observations by Gordon Research Seminar
21-26 June 2026 | United States - Gordon Research Conference - Bridging Observations, Models, and Impacts in Solar Radiation Modification Research
Solar Geoengineering Events Calendar
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Ice, ice, maybe: should the Arctic be refrozen? | The Intelligence
“Many scientists are considering the notion of actively cooling the region that is warming fastest. We examine the merits and the risks—both environmental and geopolitical—of messing with the polar climate.”
Solar Geoengineering Lunch Talk: Harvard’s Zhiming Kuang on Cirrus Clouds | The Salata Institute at Harvard University
“Cirrus clouds – thin, wispy, high-altitude clouds made of ice crystals – play a critical role in Earth’s radiation balance, reflecting incoming solar radiation while trapping outgoing longwave radiation. Because of this dual role, changes to cirrus clouds can result in either warming or cooling in nontrivial ways. The microphysical properties of cirrus clouds, such as the number, size, and shape of ice crystals, influence their radiative effects, and are also highly sensitive to environmental conditions like temperature, humidity, and the presence of aerosols. While stratospheric aerosol injection (SAI) aims to cool Earth’s surface by scattering incoming solar radiation, the strategy’s impacts on cirrus microphysics remain poorly understood, potentially leading to unintended consequences. In this seminar, Prof. Zhiming Kuang gives an overview of his ongoing research on aerosol–cirrus interactions, combining high-resolution simulations, aircraft measurements, and machine learning to provide critical insights into the potential climate impacts of cirrus modification from SAI.”
Frontiers Science House | Experts at odds: debating geoengineering | Frontiers
“What should be permissible in the race to limit global warming, and where do we draw the line on geoengineering?
Experts engage in a frank discussion of climate interventions—from carbon dioxide removal to albedo modification—grounded in the latest science. The session probes decision-making under uncertainty, the role of international norms and governance, and the safeguards needed to avoid moral hazard while keeping options on the table.”
Climate Intervention in the Thick Present: Tipping Points, Haraway and Staying with the Trouble | Operaatio Arktis
“With OA’s founding principle of refusing to accept harm, Anni Pokela crystallized our ongoing mission in her speech in Climate Repair Conference in St. John’s College, Cambridge last summer:
”Since we last really evaluated our climate strategies and our approaches, the reality has changed drastically. So our strategies and our approaches have to change with it if we want to respond. And that’s what climate intervention research is about at its best – not just responsibility, but ability to respond.”
This speech was originally given by OA’s strategy specialist Anni Pokela at the Arctic Repair Conference in Cambridge.”
How has our thickening method been performing? | Arctic Reflections
“We’re taking regular measurements to track how the pumped water is building new ice. So far, we see buildup of ice of around 25cm and in some cases even higher.”
SRM Research: Science, Risk & Responsibility with Dakota Gruener | Climate Chat
“In this Climate Chat episode, host Dan Miller interviews the CEO of Reflective, Dakota Gruener, about her organization’s support of Sunlight Reflection Methods (SRM, a.k.a., solar-geoengineering) research.”
Climate and Agriculture | ToSaveTheWorld
“Dennis Garrity’s and Robert Tulip’s professional careers addressed development problems. Now the planet’s heat threatens to reduce food production, so they promote quicker solutions.”
Twitter | Bluesky | LinkedIn | Substack | Google Group | Podcast 1 | Podcast 2
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