Geoengineering Info Profile picture
Apr 21, 2023 6 tweets 5 min read Read on X
🚨NEW PAPER🚨

"A comprehensive #bioenergy accounting model with a multi-dimensional analysis was
developed in a new study based in #China by combining spatial, life-cycle, and multi-path analyses."

Summary in a 🧵 below ⬇️
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Accordingly, "the #bioenergy production potential and #GHG emission reduction for each distinct type of #biomass feedstock through different conversion pathways were estimated in the study."
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"The sum of all available organic waste (21.55EJ/yr) & energy plants on marginal land (11.77EJ/yr) in China produced 23.30EJ of #bioenergy & reduced 2535.32Mt CO2-eq emissions, accounting for 19.48% & 25.61% of China’s T energy production & C emissions in 2020, respectively."
3/6 Image
Furthermore, in this study, "life-cycle emission reductions were maximized by a mix of #bioenergy end uses based on #biomass properties, with an optimal 78.56% bioenergy allocation from biodiesel, densified solid biofuel, biohydrogen, and #biochar."
4/6 Image
Read the open-access article entitled: "Benefit analysis of multi-approach #biomass energy utilization toward carbon neutrality" ⬇️
cell.com/the-innovation…

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More from @geoengineering1

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
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

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