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solargeoeng.bsky.social
Solar Geoengineering Non-use Agreement
@solargeoeng.bsky.social
180 followers 140 following 72 posts
A global initiative against the dangerous normalisation of solar geoengineering technologies. To date, 600+ academics and 2000+ CSOs support the call for an International Non-Use Agreement on Solar Geoengineering.

http://solargeoeng.org
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solargeoeng.bsky.social
Solar Geoengineering Non-use Agreement @solargeoeng.bsky.social · Dec 10
"African nations have acted because they don’t want their continent to become a test bed for unproven schemes to spray particles into the high atmosphere to reflect sunlight away from Earth for a small, uncertain cooling gain." www.theguardian.com/commentisfre...
The Guardian view on solar geoengineering: Africa has a point about this risky technology | Editorial
Editorial: Sun-dimming risks putting the planet’s thermostat under Donald Trump’s control. Better to adopt the precautionary principle with high-stakes science
www.theguardian.com
solargeoeng.bsky.social
"...using SAI [stratospheric aerosol intervention] to offset surface temperature increases would create decreases in the global protein concentrations of maize and rice, with minimal impact on wheat and soybean." iopscience.iop.org/article/10.1...
Maps of percent change to crop protein concentration for individual nations under ARISE-SAI-1.5 C relative to SSP2-4.5 during the years 2060–2069 as simulated by CLMcrop.
January 12, 2026 at 8:07 AM
Reposted by Solar Geoengineering Non-use Agreement
pkashwan.bsky.social
Well said. If you're new to Solar Geoengineering, please check out and sign/endorse the @solargeoeng.bsky.social Non-use Agreement campaign and/or talk to any one of the signatories to that campaign. share.google/72PZF3zVhae2... Or, check out Chapter 3 in Decolonizing Environmentalism linked below 👇🏽
January 5, 2026 at 8:58 PM
solargeoeng.bsky.social
'We have to face climate change' in the prism of a world 'wrecked' by conflicts and injustice - and Solar Radiation Management is not a solution for this @fabio-dandrea.bsky.social www.youtube.com/watch?v=7XmF...
'We have to face climate change' in the prism of a world 'wrecked' by conflicts and injustice
YouTube video by FRANCE 24 English
www.youtube.com
December 15, 2025 at 9:12 AM
solargeoeng.bsky.social
"Upon the termination of the geoengineering, the climatic conditions—temperature, precipitation, winds and moisture would abruptly change to what it would have been under the global warming scenario." (Bhowmick et al. 2021) www.nature.com/articles/s41...
Changes in surface air temperature (°C, left column) and precipitation (mm/day, right column) for 1pctCO2 (red line) and G2 (blue line) simulations relative to the piControl condition for the globe (top row, JJA mean), tropics (middle row, JJA mean), and Indian monsoon region (bottom row, JJAS mean). Lines show the multi-model mean and the shadings show the intermodel standard deviation. The dashed vertical line shows the time of termination of geoengineering in the G2 simulations.
December 14, 2025 at 3:39 PM
Reposted by Solar Geoengineering Non-use Agreement
labreche.bsky.social
« Ce qui me sidère, c’est de voir que les complotistes sont par ailleurs complètement aveugles à la désinformation des industries fossiles pour nous faire croire qu’ils ne sont pas responsables des changements climatiques », soupire Marine de Guglielmo Weber.
journal-labreche.fr/l-a-geo-inge...
L a géo-ingénierie, source de fake news complotistes
La géo-ingénierie suscite de nombreux fantasmes auprès des complotistes et est une source régulière de fake news
journal-labreche.fr
October 13, 2025 at 10:15 AM
Reposted by Solar Geoengineering Non-use Agreement
sciencecqfd.bsky.social
#Podcast Géo-ingénierie : peut-on mener le climat à la baguette ? à (ré)écouter via @franceculture.fr ! #ScienceCQFD
www.radiofrance.fr/francecultur...
Géo-ingénierie : peut-on mener le climat à la baguette ?
Dans un monde qui se réchauffe et où les réductions d’émissions de GES restent insuffisantes, de nouvelles technologies proposent de refroidir la planète sans toucher pour autant à nos modes de vie. F...
www.radiofrance.fr
November 10, 2025 at 4:02 PM
Reposted by Solar Geoengineering Non-use Agreement
valmasdel.bsky.social
"many marine-climate interventions are currently being tested and deployed in an under-regulated pseudo-scientific bubble"

www.nature.com/articles/s41...
Novel marine-climate interventions hampered by low consensus and governance preparedness - Nature Climate Change
Oceans are on the front line of new planned climate actions, but understanding of novel marine-climate intervention development and deployment remains low. Here a survey among intervention practitione...
www.nature.com
April 5, 2025 at 7:03 AM
Reposted by Solar Geoengineering Non-use Agreement
ketanjoshi.co
Also: I constantly see this line about "buying time" (KSR says in the pod too).

As if we haven't known about the exact nature of this problem since before I was born??? This is transparently not about 'more time', because they're talking down mitigation

www.technologyreview.com/2025/12/10/1...
Stardust says it’s important to pursue the possibility of solar geoengineering because the dangers of climate change are accelerating faster than the world’s ability to respond to it, requiring a new “class of solution … that buys us time and protects us from overheating.”
December 10, 2025 at 7:29 PM
Reposted by Solar Geoengineering Non-use Agreement
ketanjoshi.co
So, in this episode of @the-breakdown.bsky.social, Kim Stanley Robinson says 'no one is proposing geoengineering as a replacement for mitigation'. Lots to agree w/ KSR in this ep but this isn't right. A nice example:

bsky.app/profile/jtem...
The proprietary (and still secret) particles could counteract all the greenhouse gases the world has emitted over the last 150 years, the company stated in a 2023 pitch deck it presented to venture capital firms. In fact, it’s the “only technologically feasible solution” to climate change, the company said.
December 10, 2025 at 7:23 PM
Reposted by Solar Geoengineering Non-use Agreement
wolfgangcramer.net
Récit en BD d'un projet contesté, qui séduit les industriels du fossile : répandre du soufre dans la stratosphère pour faire baisser la température. l.revue21.fr/9G

Auteurs: @ysciama.bsky.social et Alban Marilleau
Page du BD "Les rêves fous d'un apprenti sorcier du climat"
August 30, 2025 at 9:54 AM
Reposted by Solar Geoengineering Non-use Agreement
mediapart.fr
Boosté par l’argent de Wall Street et de la Silicon Valley, le projet de refroidir artificiellement le climat sort des marges. Mais l’irruption d’intérêts privés dans ces technologies potentiellement catastrophiques suscite une levée de boucliers chez des scientifiques. 

Par @ysciama.bsky.social‬
Climat : la géo-ingénierie solaire attire de plus en plus d’investissements privés
Boosté par l’argent de Wall Street et de la Silicon Valley, le projet de refroidir artificiellement le climat sort des marges. Mais l’irruption d’intérêts privés dans ces technologies potentiellement catastrophiques suscite une levée de boucliers chez des scientifiques. 
l.mediapart.fr
November 22, 2025 at 10:20 AM
Reposted by Solar Geoengineering Non-use Agreement
climatebook.bsky.social
New article from the Solar Geoengineering Non Use Agreement team: "Solar Geoengineering for Profit" (Spoiler -- we're against it.) www.solargeoeng.org/solar-geoeng...
Solar geoengineering for profit - Solar Geoengineering Non-Use Agreement
Advocates of solar geoengineering are dismayed. But why are they surprised?
www.solargeoeng.org
November 13, 2025 at 2:46 PM
Reposted by Solar Geoengineering Non-use Agreement
climatebook.bsky.social
Interesting article by my colleagues, on possible applications of existing international law to restraints on solar geoengineering.
www.cambridge.org/core/journal...
Solar Geoengineering Governance: A Fragmented Institutional Landscape Covering Multi-Dimensional Impacts | European Journal of Risk Regulation | Cambridge Core
Solar Geoengineering Governance: A Fragmented Institutional Landscape Covering Multi-Dimensional Impacts
www.cambridge.org
December 9, 2025 at 1:16 PM
Reposted by Solar Geoengineering Non-use Agreement
doctorvive.bsky.social
Today I learned that a majority of African nations are calling for a global governance mechanism for non-use of solar geoengineering.

Important to know!

wedocs.unep.org/rest/api/cor...
AMCEN/19/6 UNEP AMCEN AU African Ministerial Conference on the Environment Nineteenth session Ministerial meeting Addis Ababa, 17 and 18 August 2023 Report of the meeting of the nineteenth session of the African Ministerial Conference on the Environment
December 9, 2025 at 2:56 PM
solargeoeng.bsky.social
"African nations have acted because they don’t want their continent to become a test bed for unproven schemes to spray particles into the high atmosphere to reflect sunlight away from Earth for a small, uncertain cooling gain." www.theguardian.com/commentisfre...
The Guardian view on solar geoengineering: Africa has a point about this risky technology | Editorial
Editorial: Sun-dimming risks putting the planet’s thermostat under Donald Trump’s control. Better to adopt the precautionary principle with high-stakes science
www.theguardian.com
December 10, 2025 at 9:38 AM
solargeoeng.bsky.social
📢 ❗Just published: "Solar geoengineering for profit"

In this new blog, a group of academics responds to recent for-profit solar geoengineering ventures.

www.solargeoeng.org/solar-geoeng...

Their key message? 🧵👇

1/8
Solar geoengineering for profit - Solar Geoengineering Non-Use Agreement
Advocates of solar geoengineering are dismayed. But why are they surprised?
www.solargeoeng.org
November 13, 2025 at 1:04 PM
solargeoeng.bsky.social
🚨 New Blog Alert🚨

“𝐖𝐞 𝐤𝐧𝐨𝐰 𝐞𝐧𝐨𝐮𝐠𝐡 𝐭𝐨 𝐜𝐚𝐭𝐞𝐠𝐨𝐫𝐢𝐳𝐞 𝐒𝐭𝐫𝐚𝐭𝐨𝐬𝐩𝐡𝐞𝐫𝐢𝐜 𝐀𝐞𝐫𝐨𝐬𝐨𝐥 𝐈𝐧𝐣𝐞𝐜𝐭𝐢𝐨𝐧𝐬 (𝐒𝐀𝐈) 𝐚𝐬 𝐚 𝐝𝐚𝐧𝐠𝐞𝐫𝐨𝐮𝐬 𝐝𝐢𝐬𝐭𝐫𝐚𝐜𝐭𝐢𝐨𝐧 𝐟𝐫𝐨𝐦 𝐨𝐮𝐫 𝐧𝐞𝐞𝐝 𝐭𝐨 𝐫𝐞𝐝𝐮𝐜𝐞 𝐠𝐫𝐞𝐞𝐧𝐡𝐨𝐮𝐬𝐞 𝐠𝐚𝐬 𝐞𝐦𝐢𝐬𝐬𝐢𝐨𝐧𝐬”

www.solargeoeng.org/we-know-enou...

🧵1/6
We know enough to categorize Stratospheric Aerosol Injections (SAI) as a dangerous distraction from our need to reduce greenhouse gas emissions - Solar Geoengineering Non-Use Agreement
On September 9th, 2025, we published the article Safeguarding the polar regions from dangerous geoengineering: a critical assessment of proposed concepts and future prospects in the scientific journal...
www.solargeoeng.org
November 5, 2025 at 11:44 AM
solargeoeng.bsky.social
‼️ Join us this Friday at #ClimateWeekNYC for our virtual session: “Solar Geoengineering: The Case for an International Non-Use Agreement”

📆 September 26, 2025
🕘 9:00–10:30 AM EDT
📍 Online

🔗 Register here: foe-org.zoom.us/webinar/regi...
Solar Geoengineering: The Case for an International Non-Use Agreement
September 23, 2025 at 9:13 AM
solargeoeng.bsky.social
Dr. Margaretha Wewerinke-Singh, Assoc. Prof. of Sustainability Law at the University of Amsterdam, Adjunct Prof. of Law at the University of Fiji & Member of the Permanent Court of Arbitration, on why she signed the Open Letter calling for an International Non-Use Agreement on Solar Geoengineering 💬
July 8, 2025 at 12:09 PM
solargeoeng.bsky.social
📢 "𝗔𝗳𝗿𝗶𝗰𝗮 𝗜𝘀 𝗡𝗼𝘁 𝗮 𝗦𝗼𝗹𝗮𝗿 𝗚𝗲𝗼𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗧𝗲𝘀𝘁 𝗦𝗶𝘁𝗲"

Prof. Chukwumerije Okereke & Nnimmo Bassey warn that experimenting with speculative solar geoengineering technologies on the African continent constitutes a grave act of climate injustice.

www.project-syndicate.org/commentary/a...

Some quotes 🧵👇
Africa Is Not a Solar Geoengineering Test Site
Chukwumerije Okereke & Nnimmo Bassey warn that experimenting with speculative technologies on the continent is a grave act of climate injustice.
www.project-syndicate.org
July 3, 2025 at 11:34 AM
solargeoeng.bsky.social
Dr. Rakhyun E. Kim, Associate Professor of Earth System Governance at the Copernicus Institute of Sustainable Development at Utrecht University, on why he signed the Open Letter calling for an International Non-Use Agreement on Solar Geoengineering 💬

@rakhyunkim.bsky.social
June 20, 2025 at 8:16 AM
solargeoeng.bsky.social
🚨 𝗝𝘂𝘀𝘁 𝗿𝗲𝗹𝗲𝗮𝘀𝗲𝗱: “𝗔𝗥𝗜𝗔'𝘀 '𝗘𝘅𝗽𝗹𝗼𝗿𝗶𝗻𝗴 𝗖𝗹𝗶𝗺𝗮𝘁𝗲 𝗖𝗼𝗼𝗹𝗶𝗻𝗴' 𝗙𝗼𝗹𝗹𝘆”

Professors R. Pierrehumbert, M. Hulme, P. Newell & A. Stirling critique the UK Advanced Research and Invention Agency’s unprecedented £60 million solar geoengineering research initiative.

A thread on their key concerns 👇
ARIA’s ‘Exploring Climate Cooling’ Folly - Solar Geoengineering Non-Use Agreement
On 7 May 2025, the UK Advanced Research and Invention Agency (ARIA) announced the list of projects to be funded under its £60 million solar geoengineering research initiative. Readers of this blog wil...
www.solargeoeng.org
May 27, 2025 at 11:53 AM
solargeoeng.bsky.social
Professor Alexandre A. Costa, climate scientist at the Universidade Estadual do Ceará, on why he signed the Open Letter calling for an International Non-Use Agreement on Solar Geoengineering 💬

@profalexandrecosta.bsky.social
May 22, 2025 at 9:48 AM
solargeoeng.bsky.social
Prof. Jennie Stephens, Professor of Climate Justice at the National University of Ireland Maynooth, on why she signed the Open Letter calling for an International Non-Use Agreement on Solar Geoengineering 💬

@jenniecstephens.bsky.social @maynoothuniversity.ie
May 14, 2025 at 7:52 AM
solargeoeng.bsky.social
Prof. Louis Kotzé, Professor of Law and Chair of the Law Group at Wageningen University & Research, on why he signed the Open Letter calling for an International Non-Use Agreement on Solar Geoengineering 💬
May 2, 2025 at 9:11 AM