Geoengineering Info Profile picture
May 27, 2023 12 tweets 10 min read Read on X
🚨📝NEW PAPER 📝🚨

Recent study present an analysis of “the gap between the CO2 storage required to meet net zero targets and the slow maturation of regional storage resources.”

#NetZero
#EuropeanGreenDeal
#CarbonDioxideStorage
#EnergyTransition

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Researchers estimate that “European storage rates need to boost 30-100x by 2030 to meet #NetZero by 2050. 🇨🇳 & North America face a similar challenge. The slow global progress of #CarbonStorage undermines the latest IPCC, IEA & EU transition pathways to net zero by 2050.”
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“These pathways imply a radically in teased demand for carbon capture and storage & #NegativeEmissionTechnologies (#NETs), contributing 500 of 700 megatonnes of #CarbonDioxideRemoval annually by 2050.”
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Here, scientists of this study investigate “if sufficient #storage can be developed in time. China 🇨🇳 (30%), (15%) and Europe 🇪🇺(10%) dominate global #emissions.”

In this study, “Europe was chosen as a data-rich exemplar.” 
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“Assuming #NetZero in 2050, researchers back-calculate the #storage required under 3️⃣ scenarios of low, medium, and high #CCS demand.”
5/12
“Even the low demand scenario requires 0.2 Gt of #storage by 2030, increasing to 1.3 Gt by 2050. The moderate & high demand scenarios require 5-8 Gt by 2050. The current #CarbonStorage rate in #Europe is 0.001 Gt/yr.”
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So, “there is a huge gap btw policy demand & #storage supply. Adaptation of existing #hydrocarbon tech has the potential to close this gap, with CCS for the entire EU requiring less than half the historic rate of HC exploration & development in UK North Sea from 1980-2010.”
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“Counter to expectation, #storage cannot be delivered by exponential growth but requires an early & sustained investment of 30-50 boreholes per year starting before 2030 to build sufficient capacity,” researchers affirmed.
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“A 5-year lead-time to identify & mature prospects needs policy intervention before 2025. Continued policy deferral will lock Europe into a low CCS pathway that restricts the contribution of #NETs at a potential cost of €100 billion for every gigatonne delayed beyond 2050.”
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According to this research, “North America & China require similar policy intervention to close the gap on #CarbonStorage and #NetZero.”
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To get more information on the research entitled: "Mind the gap: will slow progress on carbon dioxide storage undermine net zero by 2050?" (Preprint) visit ⬇️
📖📝➡️eartharxiv.org/repository/vie…

#NetZero
#EuropeanGreenDeal
#CarbonDioxideStorage
#EnergyTransition

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More from @geoengineering1

Feb 20
🚨Should SRM Be Seen as a Serious Security Issue?

Four experts offer their thoughts on the potential security risks associated with sunlight reflection methods (#SRM), or solar geoengineering, highlighting the geopolitical complexity of the field.

Read here:🧵1/6
Burgess Langshaw Power argues climate change is now a security issue and SRM could be too, but warns against military control to avoid secrecy or an arms race.

2/6 Image
Josh Horton says SRM isn’t a direct threat but could indirectly heighten geopolitical tensions if deployment disputes emerge.

3/6 Image
Read 8 tweets
Feb 18
🚨A new study in Communications Sustainability explores whether enhanced rock weathering (#ERW) can scale into a meaningful, equitable climate solution.

The headline: ERW could remove ~1GtCO₂/yr by 2100, but who deploys it, when & how fast will shape its global impact.🧵1/10 Image
2/ Enhanced rock weathering works by spreading crushed silicate rocks on croplands.

These minerals chemically react with CO₂, locking carbon into stable forms while improving soil quality. It’s a rare intervention promising both climate mitigation and agricultural co-benefits.
3/ But technical potential alone doesn’t determine climate outcomes. The central question the paper asks is:

How does ERW adoption diffuse across countries under real-world economic, social, and political conditions?
Read 11 tweets
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
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
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
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

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