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.” 
4/12
“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

Apr 22
🚨Green roofs + enhanced rock weathering (#ERW) could turn cities into carbon sinks.

A new assessment finds Europe’s rooftops could remove tens of millions of tonnes of CO₂ by 2060, with global potential reaching hundreds of MtCO₂/yr under ideal conditions.

Details🧵1/12 Image
2/ The work is a conceptual, literature-based assessment combined with geochemical scaling.

It estimates CO₂ removal using theoretical maximum reactivity (100% mineral conversion) and extrapolates across urban roof availability in Europe and globally.
3/ Roof availability is a key input:

The study uses estimates that roofs cover ~30–32% of urban land area, and up to ~50% of impervious surfaces in dense cities, highlighting a large, currently underused surface for carbon removal deployment. Image
Read 14 tweets
Apr 16
🚨A new study details that the climate value of algae & cyanobacteria lies not in CO₂ uptake alone, but in their capacity to generate long-lived, chemically recalcitrant C compounds, such as algaenan & carbonates that may contribute to durable sequestration pathways.

🧵1/11 Image
2/ The study adopts a conceptual synthesis framework, integrating biochemical & geochemical evidence to examine carbon fate post-photosynthetic fixation, moving beyond uptake rates to study the thermodynamic and structural persistence of biogenic carbon. Image
3/ It constructs a functional distinction between:

1) Labile carbon fractions, which are rapidly cycled through microbial respiration

2) Recalcitrant fractions, which resist degradation & contribute to long-term carbon storage across terrestrial & marine systems.
Read 12 tweets
Apr 3
🚨🗞️Monthly Solar Geoengineering Updates (March'26 Edition)🗞️🚨

From UN review of #SRM tech & its human rights impacts, to US organizations resisting SRM bans, plus new tools & research awards – SRM headlines you need to know from the past month:🧵1/13

🔗 …largeoengineeringupdates.substack.com/p/monthly-sola…Image
🚨Top 10 SRM Updates from March 2026:

1️⃣ @OHCHR_MENA seeks input on climate technologies - The UN Human Rights Office is collecting submissions on how SRM & CDR may impact human rights, with a report due later this year.

2/13 Image
2️⃣ US National Security Framing – ACCF report urges federal research and international governance to prevent rivals from gaining strategic advantage.

3/13 Image
Read 14 tweets
Apr 1
🚨Direct air capture (#DAC) using amine-based sorbents is one of the "most promising ways" to remove CO₂, but a core challenge remains: the materials degrade over time, raising costs and limiting scale.

A new study examines why that happens and how to fix it.🧵1/12 Image
2/ Degradation here means any chemical or physical change that reduces CO₂ uptake or increases energy needed for regeneration.

Over time, even small losses compound, turning a promising material into a costly bottleneck.
3/ The paper highlights that degradation is not a single process.

It emerges from a combination of oxidative, thermal, and environmental pathways, each interacting with the sorbent’s molecular structure in different ways. Image
Read 14 tweets
Mar 26
🚨New research from WashU shows that diamond dust, long proposed as an ideal solar geoengineering (#SRM) material for #SAI, may lose much of its cooling potential when real-world chemistry & manufacturing constraints are taken into account.

DETAILS🧵1/11 Image
2/ Solar geoengineering, particularly stratospheric aerosol injection (#SAI), seeks to mimic volcanic cooling by dispersing reflective particles into the upper atmosphere, reducing incoming solar radiation and temporarily offsetting warming.
3/ Sulfate aerosols (from volcano-like approaches) can cool the planet, but they come with risks: acid rain, ozone damage, and health impacts.

So scientists have been searching for safer alternatives like diamond.
agupubs.onlinelibrary.wiley.com/doi/10.1029/20…
Read 13 tweets
Mar 18
🚨Where should Direct Air Capture (#DAC) be deployed to scale carbon removal?

New research shows: costs are driven less by the technology itself and more by location, climate, and energy systems, making DAC a fundamentally geo-dependent solution.

Details🧵1/10 Image
2/ DAC needs to scale to 0.5–5 GtCO₂/year by 2050, yet current capacity is ~0.00004 Gt.

Scaling requires massive cost reductions, and smart siting.
3/ The study evaluates two leading approaches:
• Solid sorbent DAC (S-DAC)
• Liquid solvent DAC (L-DAC)

Using global, high-resolution data on weather and renewable energy availability.
Read 12 tweets

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