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

Mar 4
🚨🐜Tiny fungus-farming ants have evolved the ability to capture carbon dioxide from air (#CDR) and convert it into a mineral layer on their bodies, forming a natural protective armour, a surprising biological mechanism reported by scientists in a new study.

Details🧵1/11 Image
2/ The discovery comes from studying crowded ant nests where carbon dioxide can build up.

Instead of simply tolerating high CO₂, these ants appear to use the gas as a chemical resource inside their nest environment.
3/ Fungus-farming ants forage for vegetation to feed cultivated fungi that are grown inside their colonies. In turn, the fungi serve as the primary food source for the ants.

The high density of ants and fungi can result in high concentrations of CO2 inside the nests. Image
Read 13 tweets
Mar 4
🚨🗓️Solar Geoengineering Events Calendar Update

From Oxford lectures & London policy debates to GeoMIP in Tokyo, #SRM governance forums in Belgium & major gatherings across Vienna, US & beyond + key job & abstract deadlines. Here’s what’s coming up🧵1/22

teamup.com/ks64mmvtit583e…Image
2/ Add our SRM Events Calendar to your default calendar in 2 ways:

Head to this link:

And follow these steps: teamup.com/ks64mmvtit583e…Image
List of what's coming up:

04 March | Oxford University - The unknowability of solar geoengineering and why it matters by OCRN Annual Lecture



3/energy.ox.ac.uk/events/event/o…
Read 23 tweets
Feb 26
🚨A new study finds that most enhanced weathering models overestimate CO₂ removal (#CDR) because they assume all added rock powder reacts, when in reality, soil structure & moisture mean much of the mineral surface never gets wet, cutting reaction rates by up to 97%.

🧵1/12 Image
2/ Enhanced weathering (EW) works by spreading finely ground silicate rocks onto soils. When these minerals react with water and CO₂, they form bicarbonate, effectively removing carbon from the atmosphere.

But here’s the catch: no water contact, no reaction. Image
3/ Most large-scale CDR models assume that once rock powder is added to soil, its surface is “available” for reaction.

In reality, soils are complex porous systems. H2O does not evenly coat every particle.

So, this study asks: How much of the rock surface is actually wet
Read 13 tweets
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

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