The Solar Geoengineering Updates Newsletter (August'2024)

Welcome to the Solar Geoengineering Updates Newsletter, a monthly newsletter that updates you on the developments of everything SRM-related.

Source: ICFG

TABLE OF CONTENTS

1. Deadlines

2. Research Papers

3. Web Posts

4. Theses

5. Book

6. Job Opportunities

7. Upcoming Events

8. Podcasts

9. YouTube Videos

Note: Click on the headings listed in the table of contents above to easily navigate to the sections you're interested in.

DEADLINES

(NEW) Call for Abstract—YHYS Colloquium 2024 | Deadline: 16 September 2024

Session: Climate interventions as a phenomenon of the Anthropocene: Environmental social sciences research into the suggested stopgap measures.

Call for Proposals—WCRP Climate Global South Fellowship provides young researchers the opportunity to develop their own research initiatives, including on SRM | Deadline for submitting applications: 30 September 2024

Funding opportunity: Modelling environmental responses to solar radiation management by Natural Environment Research Council (NERC) | Deadline to apply: 08 October 2024

(NEW) Call for Submission—Repair Conference 2025 by Centre for Climate Repair | Deadline: 31 October 2024

Applications for presentations and posters are required in the following areas:

-Stratospheric Aerosol Injection

-Marine Cloud Brightening

-Seabed Curtains

-Sea Ice Thickening

-Space Sun Shades

-Other Arctic Repair Topics (e.g. glacier drainage, land surface albedo enhancement, cirrus cloud thinning, ocean foaming etc.)

Submit your recent research on Solar Radiation Management to new ES: Atmospheres collection | Deadline: 31 January 2025

RESEARCH PAPERS

Projected Thermally Driven Elderly Mortality for Beijing Under Greenhouse Gas and Stratospheric Aerosol Geoengineering Scenarios

Wang, J., Zhao, L., & Moore, J. C. (2024). Projected thermally driven elderly mortality for Beijing under greenhouse gas and stratospheric aerosol geoengineering scenarios. Earth's Future, 12(7), e2024EF004422.

Synopsis: The study examines the potential health impacts of stratospheric aerosol injection (SAI) geoengineering on Beijing's aging population. Using downscaled Earth System Models, findings suggest SAI could reduce heat-related deaths by 630-3,160 annually but increase cold-related deaths by 370-1,990 from 2060-2069. A marginal net reduction in mortality is predicted. Population aging and adaptation measures significantly influence future temperature-related deaths.

Do small outdoor geoengineering experiments require governance?

Jinnah, S., Talati, S., Bedsworth, L., Gerrard, M., Kleeman, M., Lempert, R., ... & Sugiyama, M. (2024). Do small outdoor geoengineering experiments require governance?. Science, 385(6709), 600-603.

Synopsis: In March 2024, Harvard University canceled its Stratospheric Controlled Perturbation Experiment (SCoPEx), which would have been the first outdoor stratospheric aerosol injection (SAI) experiment. The study highlights the governance framework developed by an independent advisory committee (AC) for SCoPEx and reflects on the challenges and tensions faced in its implementation. The findings stress the importance of governance in solar geoengineering research.

First simulations of feedback algorithm-regulated marine cloud brightening

Lee, W. R., Chen, C. C., Richter, J. H., MacMartin, D. G., & Kravitz, B. (2024). First simulations of feedback algorithm-regulated marine cloud brightening. Authorea Preprints.

Synopsis: The study presents the first simulation of feedback control-regulated marine cloud brightening (MCB) using the CESM2 model. The feedback controller effectively maintained a global mean temperature of 1.5°C above preindustrial levels in the SSP2-4.5 scenario. Findings show temperature responses similar to stratospheric aerosol injection (SAI), though regional impacts, Arctic sea ice, and AMOC exhibit potential differences due to system memory.

Shading responses are species-specific in thermally stressed corals

Ellis, S. L., Butcherine, P., Tagliafico, A., Hendrickson, C. A., Kelaher, B. P., Schulz, K. G., & Harrison, D. P. Shading responses are species-specific in thermally stressed corals. Frontiers in Marine Science, 11, 1333806.

Synopsis: The study examined shading as a method to reduce coral bleaching during marine heatwaves by testing Acropora divaricata and Acropora kenti under different temperatures and light conditions. Shading significantly reduced bleaching in A. divaricata, preventing photochemical collapse at 4.4 DHW. However, A. kenti showed mixed responses, with shading reducing lipid peroxidation but not overall bleaching. Species-specific responses are crucial in assessing coral bleaching interventions.

Strategic dimensions of solar geoengineering: Economic theory and experiments

Heyen, D., & Tavoni, A. (2024). Strategic dimensions of solar geoengineering: economic theory and experiments. Journal of Behavioral and Experimental Economics, 102271.

Synopsis: The study reviews the strategic implications of solar geoengineering, which offers a rapid, low-cost way to reduce global temperatures. Key findings highlight concerns about who would deploy these technologies and their impact on others. The presence of solar geoengineering may alter incentives for climate mitigation. The study outlines existing research and identifies areas for future economic studies on this issue.

The effectiveness of solar radiation management for marine cloud brightening geoengineering by fine sea spray in worldwide different climatic regions

Song, Z., Yao, N., Chen, L., Sun, Y., Jiang, B., Li, P., ... & Yu, S. (2024). The effectiveness of solar radiation management for marine cloud brightening geoengineering by fine sea spray in worldwide different climatic regions. EGUsphere, 2024, 1-40.

Synopsis: The study investigates the effectiveness of Marine Cloud Brightening (MCB) by injecting sea-salt aerosols over five oceans to assess direct and indirect aerosol effects. Findings show that at low injection rates, indirect effects dominate by brightening clouds, but as injection increases, direct scattering surpasses indirect effects. MCB is most effective in regions with extensive cloud cover, while direct effects are key in cloud-scarce areas.

Projected global sulfur deposition with climate intervention

Rubin, H. J., Yang, C. E., Hoffman, F. M., & Fu, J. S. (2024). Projected global sulfur deposition with climate intervention. Global Environmental Change Advances, 3, 100011.

Synopsis: The study models the impacts of stratospheric aerosol injection (SAI) on sulfur deposition across various ecoregions. Findings show that while dry sulfur deposition will decline by 2100, wet sulfur deposition remains uncertain. Model projections vary significantly, with some predicting up to 394% higher deposition in specific forests under SAI. The research emphasizes the need to harmonize models and improve understanding of SAI's environmental effects for informed climate decision-making.

Building capacity to govern emerging climate intervention technologies

Dove, Z., Jinnah, S., & Talati, S. (2024). Building capacity to govern emerging climate intervention technologies. Elementa: Science of the Anthropocene, 12(1).

Synopsis: The study emphasizes the need for "governance capacity building" to effectively and inclusively manage emerging climate intervention technologies like solar geoengineering (SG). It highlights the importance of equipping diverse actors, especially in climate-vulnerable regions, with the knowledge, tools, and skills for long-term governance. Current capacity-building efforts lack inclusivity, and the study proposes a new model, led by the Global South, to address these gaps.

Peak Shaving with Solar Radiation Management Would Shorten Global Temperature Overshoot

Boselius, L., Duffey, A., & Irvine, P. J. (2024). Peak Shaving with Solar Radiation Management Would Shorten Global Temperature Overshoot. Authorea Preprints.

Synopsis: The study evaluates solar radiation management (SRM) as a method for "peak shaving" to mitigate global temperature overshoot beyond Paris Agreement targets. Using the FaIR model, it finds that SRM can significantly shorten the duration of temperature overshoots by up to 20%, primarily due to reduced ocean temperatures. SRM also lowers the cumulative net negative emissions required to end the overshoot by approximately 27%, suggesting it could complement emissions reductions and carbon dioxide removal efforts effectively and cost-efficiently.

HSW-V v1.0: localized injections of interactive volcanic aerosols and their climate impacts in a simple general circulation model

Hollowed, J. P., Jablonowski, C., Brown, H. Y., Hillman, B. R., Bull, D. L., & Hart, J. L. (2024). HSW-V v1. 0: localized injections of interactive volcanic aerosols and their climate impacts in a simple general circulation model. Geoscientific Model Development, 17(15), 5913-5938.

Synopsis: The study introduces new parameterizations for simulating stratospheric volcanic aerosols in the E3SMv2 model using an idealized Held–Suarez–Williamson (HSW) atmospheric background. The model tracks sulfur dioxide and ash, converting SO2 to sulfate aerosols with long stratospheric lifetimes. Results, including simulations of the 1991 Mt. Pinatubo eruption, show that these parameters can realistically model temperature anomalies. HSW-V offers a cost-effective, simplified tool for climate impact studies without needing detailed microphysical modeling.

IMO2020 Regulations Accelerate Global Warming by up to 3 Years in UKESM1

Jordan, G., & Henry, M. (2024). IMO2020 regulations accelerate global warming by up to 3 years in UKESM1. Earth's Future, 12(8), e2024EF005011.

Synopsis: The study assesses the climatic impact of the 2020 International Maritime Organization (IMO2020) sulfur regulations using UKESM1. It finds that IMO2020 results in a global effective radiative forcing of 0.139 ± 0.019 Wm−2, mainly due to changes in cloud properties. This regulation leads to an average global temperature increase of 0.046 ± 0.010°C from 2020–2029, contributing to the exceptional warming observed in 2023. The study suggests the need for model intercomparisons and more data to fully understand IMO2020's climate effects.

On Thin Ice: Solar Geoengineering to Manage Tipping Element Risks in the Cryosphere by 2040

Smith, W., Bartels, M. F., Boers, J. G., & Rice, C. V. (2024). On thin ice: Solar geoengineering to manage tipping element risks in the cryosphere by 2040. Earth's Future, 12(8), e2024EF004797.

Synopsis: The study explores the potential of stratospheric aerosol injection (SAI) to manage tipping elements in the Arctic and Antarctic, which could be triggered in the coming decades. It highlights the importance of developing infrastructure for SAI as a proactive risk management strategy. Findings suggest that to effectively respond to these threats, a funded launch decision by a credible actor is needed by around 2030, with operational capability required by 2040.

Solar Geoengineering: History, Methods, Governance, Prospects

Parson, E. A., & Keith, D. W. (2024). Solar Geoengineering: History, Methods, Governance, Prospects. Annual Review of Environment and Resources, 49.

Synopsis: The study reviews solar geoengineering (SRM), particularly stratospheric aerosol injection (SAI). Findings indicate that SRM could cool the Earth's surface by reflecting 1% of sunlight but won't fully counteract greenhouse gas effects. The study highlights SRM's potential to complement other climate strategies, while also posing new risks and governance challenges. It identifies key policy characteristics and four narrative perspectives on SRM’s development and socio-political implications.

Baseline Climate Variables for Earth System Modelling

Juckes, M., Taylor, K. E., Antonio, F., Brayshaw, D., Buontempo, C., Cao, J., ... & Dingley, B. (2024). Baseline Climate Variables for Earth System Modelling. EGUsphere, 2024, 1-37.

Synopsis: The study defines the Baseline Climate Variables for Earth System Modelling (ESM-BCVs), a list of 132 key variables crucial for evaluating climate simulations. It addresses the need for standardization in the CMIP data archive, providing clarity on which variables to include. The ESM-BCV list aims to enhance consistency in Earth System Model Intercomparison Projects (MIPs) and supports the CMIP7 Data Request. It categorizes 98 variables as low-volume and 34 as high-volume, guiding resource allocation for climate modelling.

Securing the ‘great white shield’? Climate change, Arctic security and the geopolitics of solar geoengineering

Kornbech, N., Corry, O., & McLaren, D. (2024). Securing the ‘great white shield’? Climate change, Arctic security and the geopolitics of solar geoengineering. Cooperation and Conflict, 00108367241269629.

Synopsis: The study contrasts scientific proposals for Arctic solar geoengineering with the security strategies of Arctic states and China. Findings reveal two conflicting views: scientific schemes see the Arctic as a key site for reflecting sunlight to counteract global warming, while state security strategies view it as a geopolitically contested area with rising economic opportunities. This disparity suggests that geoengineering in the Arctic may be infeasible unless integrated into competitive security agendas, raising doubts about its broader applicability.

Quantifying the Direct Radiative Effect of Stratospheric Aerosols Using Radiative Kernels

Yu, Q., & Huang, Y. (2024). Quantifying the Direct Radiative Effect of Stratospheric Aerosols Using Radiative Kernels. Authorea Preprints.

Synopsis: This study develops aerosol direct radiative effect (ADRE) kernels using MERRA-2 data to quantify stratospheric aerosol impacts. Broadband and band-by-band kernels are created to account for wavelength dependencies, and a regression model predicts kernel values from key predictors. The study estimates ADREs for the 2022 Hunga volcano eruption (global cooling of -0.46 W/m²) and the 2020 Australia wildfire (warming of +0.28 W/m²), showing the kernels capture over 90% of ADRE variance with <10% error. The results underscore the spectral sensitivity of stratospheric aerosols compared to tropospheric ones.

Effectiveness of Using Calcite as an Aerosol to Remediate the Urban Heat Island

Hoback, A. (2024). Effectiveness of Using Calcite as an Aerosol to Remediate the Urban Heat Island. Urban Science, 8(3), 124.

Synopsis: This study develops tools to assess the effectiveness of using calcite aerosols to mitigate the urban heat island effect. By placing calcite in a plume over cities, the study aims to reflect solar radiation and reduce daytime surface temperatures. Using an enhanced SCAM6 model, findings reveal that calcite reduces temperatures by up to 4°C in arid regions but is less effective in humid areas due to interactions with water clouds. The study suggests calcite aerosols could effectively mitigate urban heat islands, though further research is needed on economic, health, and ecological impacts.

South Asian Summer Monsoon under Stratospheric Aerosol Intervention

Tilmes, S., Acharya, A., Bednarz, E., & Fadnavis, S. (2024). South Asian Summer Monsoon under Stratospheric Aerosol Intervention.

Synopsis: This study evaluates the impact of Stratospheric Aerosol Intervention (SAI) on the South Asian summer monsoon (SAM) using the Stratospheric Aerosol Geoengineering Large Ensemble datasets. Findings indicate that SAI reduces both mean and extreme monsoon precipitation due to lower stratospheric warming, weakened subtropical jet, and changes in wave activities and geopotential heights. Local dust variations also affect SAM rainfall under SAI. These results highlight the urgent need for further research on SAM variability under SAI to support sustainable development and disaster preparedness in South Asia.

Cirrus formation regimes – Data driven identification and quantification of mineral dust effect

Jeggle, K., Neubauer, D., Binder, H., & Lohmann, U. (2024). Cirrus formation regimes–Data driven identification and quantification of mineral dust effect. EGUsphere, 2024, 1-25.

Synopsis: This study analyzes cirrus cloud microphysical and radiative properties using three years of satellite data and Lagrangian trajectories. It identifies cloud formation regimes and their sensitivity to dust particles acting as ice nucleating particles (INPs). Results show that liquid-origin cirrus exhibit decreased ice crystal number concentration (Nice) with higher dust concentrations, while in situ cirrus in the tropics show an increase in Nice. The study highlights that seeding cirrus with INPs might unintentionally enhance cloud radiative effects, potentially leading to warming rather than cooling.

A Mathematical Modelling for Solar Irradiance Reduction of Sunshades and Some Near-future Albedo Modification Approaches for Mitigation of Global Warming

Alagoz, B. B., Keles, C., Ates, A., & Baran, B. (2024). A Mathematical Modelling for Solar Irradiance Reduction of Sunshades and Some Near-future Albedo Modification Approaches for Mitigation of Global Warming. Journal of Atmospheric and Solar-Terrestrial Physics, 106337.

Synopsis: This study revisits the concept of a solar geoengineering solution involving a space-based sunshade at the Sun–Earth L1 point to mitigate global warming. By refining the mathematical modeling of solar irradiance reduction, the study assesses how parameters like flux reflection rate and curtain angle affect temperature control. The findings highlight the technical challenges and feasibility of such a system, discussing near-future options for addressing global warming.

Projected changes to Arctic shipping routes after stratospheric aerosol deployment in the ARISE-SAI scenarios

Morrison, A. L., Pathak, D., Barnes, E. A., & Hurrell, J. W. Projected changes to Arctic shipping routes after stratospheric aerosol deployment in the ARISE-SAI scenarios. Frontiers in Climate, 6, 1426679.

Synopsis: This study evaluates Arctic Ocean navigability under stratospheric aerosol injection. Comparing two SAI simulations with a non-SAI control, the study finds that while SAI stabilizes or increases sea ice concentration and thickness, it generally reduces the navigability of Arctic shipping routes. From 2035-2069, Arctic routes remain accessible from July-November in all scenarios, but SAI scenarios result in thicker ice and longer, more variable crossing times compared to non-SAI conditions.

WEB POSTS

Takeaways from the 14th annual meeting of the Geoengineering Model Intercomparison Project (DSG)

Now May Be the Time to Experiment With Mother Nature—Carefully! | Opinion (Newsweek)

Scientists propose guidelines for solar geoengineering research (Phys.Org)

Record number of Global South scientists attend GeoMIP 2024 (The Degrees Initiative)

The Promise of Geoengineering (AEI)

Andrew Ng’s new model lets you play around with solar geoengineering to see what would happen (MIT Technology Review)

Marine Geoengineering Will Not Save the Oceans or the Climate (Project Syndicate)

The overshoot myth: you can’t keep burning fossil fuels and expect scientists of the future to get us back to 1.5°C (The Conversation)

New UNEP Global Foresight Report Warns Against Ignoring SRM (DSG)

Inside Silicon Valley’s Grand Ambitions To Control Our Planet’s Thermostat (Noema)

Reflections from a Member of the SCoPEx Advisory Committee (Legal Planet)

From Meta CTO to climate tech investor: Mike Schroepfer on his big pivot—‘Schrep’ talks geoengineering, glaciers, and where he draws the line between climate philanthropy and investment (MIT Technology Review)

The Promises and Perils of Being an Honest Broker (DSG)

Climate tech’s biggest trouble-maker: an interview with Andrew Song of Make Sunsets (Plan B Post)

Climate tech’s biggest trouble-maker: an interview with Andrew Song of Make Sunsets

This Scientist Has a Risky Plan to Cool Earth. There’s Growing Interest (The New York Times)

Geoengineering gains momentum, but governance is lacking, critics say (Mongabay)

Cloud brightening over oceans may stave off climate change, but with risk (Mongabay)

A controversial experiment to artificially cool Earth was canceled — what we know about why (The Verge)

Governance capacity building: What it is, why it’s needed now, and how we should do it (DSG)

The Battle Over Blocking the Sun (Foreign Affairs)

Degrees holds research planning and regionalisation workshop in Latin America and the Caribbean (The Degrees Initiative)

Scientists propose guidelines for solar geoengineering research (Phys.Org)

THESES

Vanguard for a Blue Sky —Analysing Stratospheric Aerosol Injection and London’s Climate Movement: An Ecological Leninist Strategy

Governing cloud seeding in Australia and the United States : lessons for regional solar radiation management

BOOK

Cooling Climate Chaos: A Proposal to Cool the Planet within Twenty Years by Peter Paul Bunyard & Rob de Laet

JOB OPPORTUNITIES

Development/Fundraising Consultant at The Degrees Initiative | Remote

"The Degrees Initiative is a UK-based NGO that builds the capacity of developing countries to evaluate solar radiation management geoengineering (SRM), a controversial proposal for reducing some impacts of climate change by reflecting sunlight away from the Earth. Degrees is neutral on whether SRM should ever be used, but we believe that developing countries should be empowered to conduct their own research and to play a central role in SRM discussions. The initiative has been working in different forms for over a decade and our work receives worldwide coverage and widespread acclaim. We are confident that Degrees can continue to grow, including by expanding and diversifying its funding base."

Postdoctoral Scholar Opportunity in Aerosol Microphysics Modeling at UChicago

"Wang Aerosol Lab (PI: Mingyi Wang) at the University of Chicago is seeking a highly motivated postdoctoral scholar to join our interdisciplinary research team in a position supported by the University of Chicago’s Climate Systems Engineering initiative (Director: David Keith). Our focus is on aerosol microphysics modeling for solar geoengineering, with the aim of understanding two key areas: (1) the near-field aerosol number size distribution and efficacy of stratospheric aerosol injection (SAI) methods, and (2) the impact of SAI aerosols on tropospheric aerosol-cloud interactions.

Despite ongoing climate mitigation efforts, achieving the 1.5 °C target remains a significant challenge. In addition to CO2 reduction strategies, solar geoengineering, particularly the methods that involve injecting particles or inducing particle formation in the stratosphere, is being studied as a potential last resort to prevent global warming from exceeding critical climate tipping points. However, this form of human intervention comes with substantial risks: we have limited knowledge about the evolution of particles in the upper atmosphere and even less about their long-term climate impacts. Therefore, it is crucial to thoroughly study and constrain aerosol dynamics before considering any actual climate interventions to avoid unintended and potentially adverse consequences."

Research Associate - Mechanical Engineering at Southern Cross University | Deadline to apply: 15 September 2025

"Southern Cross University’s Faculty of Science and Engineering is seeking a highly motivated Research Associate in Mechanical Engineering to join the Cooling and Shading sub-program of the Reef Restoration and Adaptation Program (RRAP). This position offers an exciting opportunity to work closely with senior scientists across multiple research organizations on ground-breaking climate interventions.

As a Research Associate, you will play a critical role in advancing Marine Cloud Brightening (MCB) interventions through innovative engineering solutions. Your core responsibilities will include:

-Designing and optimizing bespoke infrastructure for seawater atomization, including pump systems, piping networks and nozzle assemblies.

-Collaborating with interdisciplinary teams to create functional prototypes of seawater atomization systems.

-Ensuring compliance with environmental and safety regulations in the design and operation of these systems.

-Contributing to the University's research profile through publications in high-quality journals."

CSEi Postdoctoral Researchers Program at University of Chicago 

"The Climate Systems Engineering initiative (CSEi) at the University of Chicago invites applications for the 2025 inaugural cohort of CSEi Postdoctoral Researchers, to be appointed at the rank of Research Associate. We seek outstanding early career scholars interested in any aspect of climate engineering.

The University of Chicago is building a substantial research cluster (including an anticipated ten new faculty lines) on the science, technology, and public policy of Climate Systems Engineering. Our goal is to advance understanding of the benefits, risks, and governance of technologies that might reduce the impacts of accumulated greenhouse gases, and to educate students who will face the challenges of managing industrial civilization on a fragile planet. CSEi’s topical scope includes open-system carbon removal such as enhanced weathering, solar geoengineering, and interventions to limit loss of glacial ice. CSEi welcomes research from across fields including the sciences, humanities, social sciences, public policy, and law.

The CSEi Postdoctoral Researchers program aims to develop the next generation of research leaders who will shape the future of climate systems engineering for the benefit of people and the planet. CSEi Postdoctoral Researchers will work closely with UChicago faculty mentors, but their research and funding are independent, and the program will help them develop strong research networks by facilitating collaboration among the postdoctoral cohort and by ensuring that they have ample opportunities to interact with the full community of CSEi-affiliated faculty and research leaders. Securing a faculty mentor in advance is strongly preferred, and applicants are encouraged to reach out early to engage a mentor. UChicago faculty members from any discipline may potentially serve as a mentor, regardless of whether they have prior experience with climate systems engineering."

UPCOMING EVENTS

(NEW) Co-CREATE Seminar: The role of public engagement and participation in SRM research | 05 September 2024 | Online

(NEW) Panel Discussion: ‘Climate overshoot: devastating risks and possible responses’ by University of Oxford | 10 September 2024 | Oxford, London

RFF 2024 SRM Social Science Workshop: Cooperative vs. Non-Cooperative Interventions | 19-20 September 2024 | Washington, DC.

(NEW) Freetown: Cooling a City at the NYC Climate Film Festival | 22 September 2024 | NYC 

(NEW) Solar Geoengineering: Perspectives on Risks, Governance Implications and Political Challenges at New York Climate Action Week | 23 September 2024 | New York

(NEW) Climate Intervention Roundtable by SilverLining and ClimateImpact | 24 September 2024 | United States 

(NEW) Exploring the Ethics and Societal Interactions of Climate Intervention by the U.S. National Science Foundation

Discovery workshop focussing on atmospheric science (SRM) | 18 October 2024 | Online

Integrative synthesis workshop focusing on identifying gaps in current governance & ethics | 18 November 2024 | Online

(NEW) 2025 Solar Radiation Management Annual Meeting by Simons Foundation | 24-25 April 2025 | New York 

The 2025 Degrees Global Forum | 12-16 May 2025 | Cape Town, South Africa

Artic Repair Conference 2025 by University of Cambridge & Center for Climate Repair | 26-28 June 2025 | Cambridge UK

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Solar Geoengineering Events Calendar

PODCASTS

Geoengineering part 1: the case to try modifying the climate | The Conservation Weekly

"Geoengineering, the modification of the climate using technological interventions to reverse climate change, is a hugely divisive issue and we’ve decided to explore it in two episodes.

In this first episode, we talk to scientists working on potential geoengineering technologies who argue the case for conducting research into these interventions. We speak to Shaun Fitzgerald, director of the Centre for Climate Repair at the University of Cambridge in the UK and Hugh Hunt, deputy director at the Centre, as well as Ben Kravitz, assistant professor of Earth and atmospheric sciences at Indiana University in the US. We're also joined by Stacy Morford, environment and climate editor at The Conversation in the US."

Geoengineering part 2: the case against reflecting sunlight to cool the earth | The Conservation Weekly

"In the second of two episodes on geoengineering, we hear the case against trying to reflect sunlight to cool the Earth.

Solar radiation modification has attracted attention and investment in recent years as a way to potential reverse the effects of climate change, but it remains a controversial idea.

We hear from researchers pushing a non-use agreement for solar geoengineering who explain why they believe these types of technologies are a dangerous distraction from what needs to be done to reduce fossil fuel emissions."

Navigating the Geopolitical Risks of Solar Geoengineering | Energy Policy Now

"Two experts discuss the geopolitical risks of solar geoengineering and the need for global governance frameworks to prevent conflict."

You can listen to unlimited podcasts on the Solar Geoengineering technology here:

Reviewer 2 quibbles with actual experts in Solar Radiation Modification and Carbon Dioxide Removal, before rejecting their work on spurious, spiteful and capricious grounds.

YOUTUBE VIDEOS

Episode 621 Oceans and Spray | ToSaveTheWorld

"Jessica Wan models climate processes. She explains to Patricia Quinn and Robert Tulip that the effects of marine cloud brightening may be beneficial today, but not by mid-century, when the climate will be warmer. Such an intervention done locally will have global effects that are hard to predict, so it is important to do research now about these processes."

MEERTALK August - Jessica Wan | MEER SRM

"Jessica Wan's work demonstrates that regional marine cloud brightening in the North Pacific can be effective at reducing the risk of extreme summer heat exposure over the Western United States under present-day climate, but the same interventions become ineffective and even counterproductive under mid-century warming.

Jessica Wan is a climate sciences PhD candidate in Dr. Kate Ricke's lab at Scripps Institution of Oceanography at the University of California San Diego studying how climate geoengineering proposals, particularly marine cloud brightening, might alleviate regional climate change impacts. She is also a National Defense Science and Engineering Graduate (NDSEG) fellow and an Achievement Rewards for College Scientists (ARCS) scholar."

Science Basics of Climate Change and SRM for African Stakeholders: ACF-DSG Workshop (August 2024) | DSG

"The Alliance for Just Deliberation on Solar Geoengineering (DSG) partnered with The African Climate Foundation (ACF) for a series of virtual workshops focusing on the critical issues surrounding the growing conversation around Solar Radiation Modification (SRM), from an African perspective. While the potential impacts for SRM on temperature are clear, global, regional and local impacts on precipitation, agriculture, geopolitics, socioeconomic security and multiple other facets remain uncertain. This first workshop provided a deep dive into the scientific aspects of climate vulnerability in the southern African context, foundational knowledge around SRM approaches, and the state of the science (globally and locally).

As with all of DSG’s workshops, these workshops are not advocacy-oriented but are part of our broader effort to enhance the capacity and knowledge of African stakeholders in the field of SRM in an unbiased way, ensuring that their voices are heard in global research and governance discussions. Participants engaged with experts offering various views on these climate intervention techniques and learned how and where to contribute towards building African narratives on SRM."

State of SRM Governance and Future Frameworks | DSG

"The Alliance for Just Deliberation on Solar Geoengineering (DSG) partnered with The African Climate Foundation (ACF) for a series of virtual workshops focusing on the critical issues surrounding the growing conversation around Solar Radiation Modification (SRM), from an African perspective. While the potential impacts for SRM on temperature are clear, global, regional and local impacts on precipitation, agriculture, geopolitics, socioeconomic security and multiple other facets remain uncertain. The second workshop focused on understanding the state of SRM in the context of overall climate policy, SRM governance frameworks, and SRM intersections with justice and human rights dimensions, and how these relate to South African policies and governance activities."

Stanford Panel on Stratospheric Aerosol Injection | Planet Parasol

“A Stanford-hosted virtual panel discussing stratospheric aerosol injection, a potential key tool for managing global temperatures. Held on Thursday, August 15th 2024.”

HPAC Discussion with Operaatio Arktis Finland | Robbie Tulip

“Conversation with Anni Pokela and Viktor Jaakkola of Operaatio Arktis. The mission of OA is ‘to preserve the polar ice caps and prevent global tipping points by updating societies' climate strategies by integrating research and development of climate interventions’. They note on their website that ‘Solar radiation reflection technologies, together with emission reductions and carbon sequestration, may have the potential to secure a stable society and a thriving habitat for younger generations’. Anni and Viktor will briefly present the work that they are doing and their plans for the future. This will be followed by an open Q&A.”

Harvard Research Fellow & Yale School of Environment Geoengineer Wake Smith | Earth Day Everyday | CirFin

"We had the true privilege and honor of having Wake Smith on the podcast! With global temperatures increasing to unprecedented levels, looking at techniques like geoengineering remain more important than ever!

While there certainly are ethical considerations for techniques like SAI (Stratospheric Aerosol Injection), we must absolutely consider them as plausible solutions.

In 1991, when Mount Pinatubo erupted an immensely large quantity of sulfur dioxide aerosols were injected into the atmosphere. It created a blanket of cloud cover that reflected sunlight, lower temperatures globally by nearly 0.5 a degree celsius!"

Terra Verde – Militarism, Green Capitalism and the Normalization of Solar Geoengineering | KPFA Radio

"An interview with Dr Kevin Surprise, an educator, academic and researcher on the political economy of climate change, with a special focus on the rapidly evolving field of solar geoengineering."

The Potential & Pitfalls of Geoengineering | Josh Horton | Collective Responsibility

"In this episode of the Sustainable Ambassador Podcast, we speak with Joshua Horton, Senior Program Fellow for Solar Geoengineering at Harvard Kennedy School, about the potential & pitfalls of geoengineering to minimize the impact of climate overshoot.

Through our conversation we speak to the roots of this growing interest, introduce several of the "core" technologies, and explore the potential, challenges, and ethical considerations surrounding the use of these technologies."

Webinar on Science of SRM: Research Implications for Pakistan | SDTV

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