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Geoengineering Info Profile picture
@geoengineering1
Dec 5, 2025 • 7 tweets • 4 min read • Read on X
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🚨🗞️Monthly Solar Geoengineering Updates (November Edition)

From the U.S. stratospheric-cooling patent to Global South funding, cautious UK–EU stances, tipping-point modeling & a surge in chemtrail chatter, #SRM captured global attention.

Top 10 SRM Highlights (Nov 2025)🧵1/6: Image
➡️@MakeSunsets secures its first US patent for stratospheric cooling tech

➡️Climate scientists remain skeptical of SRM, favor research over deployment, per @SZ (Garman newspaper) survey

➡️Royal Society sees SRM’s potential but stresses it can't solve climate change alone

🧵2/ Image
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➡️London Protocol reiterates precaution on marine geoengineering deployment

➡️UK reiterates it is “not in favor” of SRM deployment but open to debating regulation

➡️Studies warn SAI may cut protein in staple crops & destabilize yields for coffee, cacao & wine

🧵3/ Image
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➡️@DegreesNGO expands funding to 27 countries and passes 50+ peer-reviewed publications

➡️Tucker Carlson amplifies chemtrail conspiracies via interviewing Dane Wigington, driving renewed misinformation

🧵4/ Image
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➡️European publics show low SRM awareness, but prefer info & oversight over outright bans on R&D

➡️New modeling shows SAI can reduce many tipping-point elements, but effectiveness vary sharply by strategy

🧵5/ Image
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📰We covered all this and more in our November 2025 roundup. Read here:
…largeoengineeringupdates.substack.com/p/monthly-sola…

✍️Subscribe to stay informed and consider supporting our independent coverage with a paid subscription.
…largeoengineeringupdates.substack.com

🧵6/6 Image
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More from @geoengineering1

Geoengineering Info Profile picture
Feb 11
🚨New study finds #biochar made from bioenergy crops & residues in China could remove up to 1.88 GtCO₂/yr with optimized plant logistics and dedicated biomass.

At ~$10/tCO₂, far cheaper than #BECCS, it offers a scalable, cost-effective carbon removal (#CDR) pathway.

🧵1/13 Image
2/ Biochar, a carbon-rich solid produced by pyrolysis of biomass, locks carbon into soils for decades to centuries while improving soil quality and crop yields.

Its stability makes it a promising negative emissions technology (NET) relied on in climate scenarios.
3/ The authors evaluate a hybrid system called BCBE, biochar production with biomass supply from dedicated bioenergy crops grown on abandoned cropland, plus agricultural and forestry residues.

This aims to reduce competition with food production.
Read 14 tweets
Geoengineering Info Profile picture
Feb 6
🚨🗞️Monthly #SolarGeoengineering Updates (Jan 2026)🗞️🚨

From U.S. withdrawal from global climate bodies & anti-geoengineering bills, to SAI uncertainty tool, Arctic field trials & funding calls, SRM stayed at the nexus of sci & geopolitics.

Top 10 SRM Highlights (Jan'26)🧵1/11 Image
1️⃣ 𝗨.𝗦. 𝗲𝘅𝗶𝘁𝘀 𝗨𝗡𝗙𝗖𝗖𝗖 & 𝗜𝗣𝗖𝗖 - Experts warn withdrawal could weaken SRM governance, deepen geopolitical mistrust, and accelerate fragmented or unilateral approaches.

2/11 Image
2️⃣ 𝗔𝗻𝘁𝗶-𝗴𝗲𝗼𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗯𝗶𝗹𝗹𝘀 𝗶𝗻 𝘁𝗵𝗲 𝗨.𝗦. - New Arizona and Iowa state proposals target geoengineering, despite limited evidence and no active SRM programs.

3/11 Image
Read 12 tweets
Geoengineering Info Profile picture
Feb 5
🚨Climate pathways to 1.5°C increasingly depend on land-intensive carbon dioxide removal (#CDR) like forestation and BECCS.

But new research shows these climate solutions could place major pressure on #biodiversity if deployed without safeguards.

Details🧵1/11 Image
2/ Using five integrated assessment models, the study examines where large-scale CDR is projected to occur & and how often it overlaps with biodiversity hotspots and climate refugia, the places most critical for species survival. Image
3/ The analysis focuses on a moderate but realistic deployment level of 6 GtCO₂ per year:
• 3 GtCO₂/yr from forestation
• 3 GtCO₂/yr from BECCS
Even at this level, land pressures are already significant.
Read 12 tweets
Geoengineering Info Profile picture
Jan 30
🚨The Politics of Geoengineering (book) is out, offering 1st comprehensive social science view of #geoengineering.

It examines political, legal, economic & societal dimensions of CDR & SRM, from Africa to the Asia-Pacific, amid urgent governance & ethical debates

Chapters🧵1/15 Image
2/ Chapter 01: Geoengineering has shifted from theory to contested policy, with technology outpacing governance. The analysis highlights political, legal, economic, and justice dimensions and calls for urgent global oversight.

link.springer.com/chapter/10.100…Image
3/ Chapter 2 examines Carbon Dioxide Removal (CDR) as geoengineering, analyzing CO2 extraction, storage, and conversion, with SWOT insights on techniques and implications for sustainable climate action.

link.springer.com/chapter/10.100…Image
Read 16 tweets
Geoengineering Info Profile picture
Jan 21
🚨Is carbon dioxide removal (#CDR) in the Arctic really feasible?

A new peer-reviewed study systematically assessed proposed Arctic CDR pathways and finds that feasibility is far more limited than often assumed.

DETAILS🧵1/14 Image
2/ As Arctic warms rapidly (4x) & attracts attention for climate interventions, can it host CDR at meaningful scale?

To answer this, authors conducted a comparative assessment of major CDR approaches proposed for Arctic regions, spanning both nature-based & engineered methods. Image
3/ The analysis draws on existing empirical studies, pilot projects, and modeling literature, evaluating each CDR pathway against biophysical constraints, technical readiness, environmental risks, and governance requirements. Image
Read 15 tweets
Geoengineering Info Profile picture
Jan 15
🚨2025 Year in Review: Solar Geoengineering Edition🚨

As we enter 2026, we’re excited to share our yearly summary for #SRM: "Solar Geoengineering in 2025: Rays of Hope, Clouds of Doubt."

Here’s what we cover in this comprehensive review:🧵1/11 Image
2/ 𝐖𝐡𝐚𝐭’𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐝 𝐢𝐧 𝐨𝐮𝐫 𝟐𝟎𝟐5 𝐫𝐞𝐯𝐢𝐞𝐰?
1️⃣ Rising Temp & Escalating Climate Impacts
2️⃣SRM Funding Announcements
3️⃣Top SRM Stories
4️⃣Restrictions & Bans on SRM
5️⃣Essential SRM Reads
6️⃣SRM in Media
7️⃣Research Highlights
8️⃣Our Work Across Geoengineering Image
3/ 2025 was the third-warmest yr on record. @CopernicusEU shows the last 11 yrs were the warmest ever, with the global average temp in yrs 2023-25 exceeding 1.5 °C. Top climate disasters caused $120B+ in losses, intensifying debates over mitigation, CDR & SRM. Image
Read 12 tweets

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