Geoengineering Info Profile picture
May 8, 2023 10 tweets 8 min read Read on X
🚨NEW STUDY🚨
"Six models are used in a recent study to analyze the climatic, environmental & socio-economic consequences of #overshooting a C budget consistent with the 1.5°C temp target along the cause-effect chain from emissions & #CarbonRemovals to climate risks & impact."
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"Global climatic indicators such as CO2-concentration and mean temperature closely follow the #CarbonBudget #overshoot with mid-century peaks of 50 ppmv and 0.35°C, respectively."
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Findings of this study highlight that "investigating #overshoot scenarios requires temporally and spatially differentiated analysis of climate, environmental and socioeconomic systems."
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Researchers find "persistent and spatially heterogeneous differences in the distribution of #carbon across various pools, ocean heat content, sea-level rise as well as #economic damages."
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"Moreover, it was find in the study that key impacts, including degradation of marine ecosystem, heat wave exposure & economic damages, are more severe in equatorial areas than in higher latitudes, although absolute #temperature changes are stronger in higher latitudes."
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"The detrimental effects of a 1.5 °C warming and the additional effects due to #overshoots are strongest in non-OECD countries (Organization for Economic Cooperation and Development)."
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"Constraining the overshoot inflates CO2 prices, thus shifting #CarbonRemoval towards early #afforestation while reducing the total cumulative deployment only slightly, while mitigation costs increase sharply in #DevelopingCountries."
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"Thus, scenarios with C budget overshoots can reverse global mean temp increase but imply more persistent & geographically heterogeneous impacts. Overall, the decision about #overshooting implies more severe trade-offs btw #mitigation & impacts in #DevelopingCountries."
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Read the study led by @NB_pik entitled: "Exploring risks and benefits of overshooting a 1.5 °C carbon budget over space and time" here ⬇️
iopscience.iop.org/article/10.108…

#CarbonDioxideRemoval
#Overshoot

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More from @geoengineering1

Jan 1
🚨Agroforestry can lock away carbon and boost farmer livelihoods, but weak, costly measurement blocks smallholders from #carbon markets.

A new study introduced an AI-powered, smartphone-based MRV system that accurately measures tree carbon at scale.

DETAILS🧵1/11 Image
2/ Context: Carbon markets require precise Measurement, Reporting & Verification (MRV).

For smallholder agroforestry, traditional methods are labor-intensive, expensive & hard to scale. As a result, farmers are locked out of climate finance.
3/ So, in this study researchers used an approach "DiameterAlgorithm," a non-contact method that estimates tree diameter (DBH) from a single photograph.

Instead of manual tapes or costly sensors, it relies on computer vision and a simple reference tag placed on the tree. Image
Read 13 tweets
Dec 31, 2025
🚨Monthly Solar Geoengineering Updates (Dec Edition)

From NCAR’s possible shutdown & the Guardian’s sun-dimming debate to an African-led #SRM hub, the EU’s first governance conference & new studies, SRM dominated headlines and labs alike.

Top 10 SRM Highlights (Dec 2025)🧵1/8 Image
1️⃣ Trump administration plans to dismantle NCAR, a leading hub for climate & SRM research

2️⃣ Guardian editorial sparks debate, warning of “sun-dimming” under political control. In response, letters argue research shutdown stifles science & misrepresents African perspectives.

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3️⃣ DSG launches SRM Governance Horizons, a project to assess institutional readiness and inclusive governance for solar radiation modification debates.

4️⃣ Sandro Vattioni wins China’s 2025 Pineapple Science Award for research on diamond dust as a potential SRM material.

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Read 9 tweets
Dec 24, 2025
🚨What if old clothes could power cities & remove CO₂?

New study shows that modular bioenergy with carbon capture (#BECCS) using discarded textiles can cut emissions, beat landfilling on env impacts & deliver durable #CDR at costs competitive with today’s CDR markets.

🧵1/10 Image
2/ ~92 Mt of textile waste are generated globally each year. Roughly half is biogenic (e.g., cotton), meaning it already represents stored atmospheric CO₂ captured by plants during growth.

Yet ~66% of US textiles are landfilled, releasing GHGs & pollutants over time.
3/ In this study, researches model a 100 t/day modular waste-to-energy plant using:

• 100% cotton textiles
• 50/50 cotton–PET blends

Each case is assessed with and without CCS and compared to landfilling using full LCA + techno-economic analysis. Image
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Read 11 tweets
Dec 17, 2025
🚨Can land-based and ocean-based #CarbonRemoval work together, without undermining each other?

A new Earth system modeling study shows that combining BECCS & OAE delivers near-additive CO₂ removal, cutting ~23 ppm by 2100, while exposing critical Earth-system feedbacks.

🧵1/11 Image
2/ As emissions cuts lag, most 1.5–2°C pathways now rely on carbon dioxide removal.

But the real question isn’t which CDR method is best, it’s what happens when multiple CDR approaches are deployed together inside the real climate system.
3/ To answer this, researchers used the Norwegian Earth System Model, simulating the period from 2030 to 2100 under an overshoot scenario where CO₂ first rises, then falls into net-negative territory.

This allowed them to track long-term land, ocean, and atm responses. Image
Read 12 tweets
Dec 11, 2025
🚨'Rock candy' technique offers simpler, less costly way to capture C directly from air

U of Toronto engineers have developed a cheap, passive, string-based #DAC system that crystallizes CO₂ like “rock candy,” potentially cutting capital costs by up to 40%.

How it works🧵1/11
Direct air capture has existed for decades, but it’s expensive. Giant fans, complex chemical plants, and energy-intensive regeneration steps drive up costs. That’s the main criticism of today’s DAC industry.
U of Toronto researchers tackled the problem with a simple question:
What if we could let nature do most of the work?

Their answer: evaporative carbonate crystallization, a passive, wind-powered approach.
Read 12 tweets
Dec 5, 2025
🚨🗞️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

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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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Read 7 tweets

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