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Geoengineering Info Profile picture
@geoengineering1
Apr 17, 2024 โ€ข 23 tweets โ€ข 18 min read โ€ข Read on X
Scrolly
๐ŸšจTo facilitate market-based DAC research, NEW review paper compiles information on over 50 #DAC startups and their potential partners, revealing a diverse prospective market.

๐Ÿ”—

๐Ÿ“ƒ | @CellRepPhysSci

DETAILS๐Ÿงต1/20 sciencedirect.com/science/articlโ€ฆ
Image
The discussions in this review paper focus on the technologies embraced by DAC startups, including solid alkali carbonates, amine-functionalized solid sorbents, physisorbents, ion-exchange resins (IERs), and electrochemical approaches.

2/20 Image
๐Ž๐ฏ๐ž๐ซ๐ฏ๐ข๐ž๐ฐ ๐จ๐Ÿ ๐ƒ๐€๐‚ ๐ซ๐ž๐ฌ๐ž๐š๐ซ๐œ๐ก ๐š๐ง๐ ๐ฌ๐ญ๐š๐ซ๐ญ๐ฎ๐ฉ ๐œ๐จ๐ฆ๐ฉ๐š๐ง๐ข๐ž๐ฌ:
โžก๏ธResearch Area: Solid alkali carbonates

Companies:
1) @OrigenPower


2) @heirloomcarbon

3) @ParallelCarbon

3/20

Details: origenpower.com
heirloomcarbon.com
parallelcarbon.com
Image
โžก๏ธResearch Area: Amine-functionalized solid sorbents

Companies:
1) @GlobalThermo


2) @skytreeco2


3) @MosaicMaterials


4/20

Details: globalthermostat.com
skytree.eu
mosaicmaterials.com

Image
Image
โžก๏ธResearch Area: Physisorbent (MOF)

Companies:
1) MOFWORX


2) AspiraDAC


5/20

Details: web.archive.org//web/202311061โ€ฆ
aspiradac.com

Image
Image
โžก๏ธResearch Area: Physisorbent (Zeolite)

Companies:
1) @CarbonCaptureUS


2) @TerraFixing


3) Removr


6/20

Details: carboncapture.com
terrafixing.com
removr.com

Image
Image
โžก๏ธResearch Area: Ion exchange resin (moisture-swing)

Companies:
1) Carbon Collect


2) Avnos


3) Linhe Climate Science & Technology


7/20

Details: carboncollect.com
avnos.com
linkedin.com/company/linhe-โ€ฆ


Image
Image
Image
โžก๏ธElectrochemical DAC

Companies:
1)@Verdox


2)@MissionZeroTech


3)@RepAir_Carbone


4)RedoxNRG


5)@capturaCO2


6)@equatic_tech


8/20 verdox.com
missionzero.tech
repair-carbon.com
redoxnrg.com
capturacorp.com
equatic.tech

Image
Image
โžก๏ธDAC integrated in other facilities

Companies:
1) @SoletairPower


2) Carbon Reform


3) @noya_carbon


4) NeoCarbon


9/20

Details: soletairpower.fi
carbonreform.com
noya.co
neocarbon.tech
Image
โžก๏ธMembrane-based separation

Company:
1) @carbyon


โžก๏ธBiotechnologies

Companies:
1) Ucaneo


2) @BrillPlanet


10/20

Details: carbyon.com
ucaneo.com
brilliantplanet.com
Image
โžก๏ธDAC with e-fuel production

Company:
1) @sustaera


11/20

Details: sustaera.com
Image
โžก๏ธEngineering and energy partner

Companies:
1) @CORMETECH_AIR


2) Oy Hydrocell


3) @svantesolutions


4) @SouthernGreenAU


5) @rondoenergy


12/20

Details: cormetechcapture.com
hydrocell.fi/en/air-cleanerโ€ฆ
svanteinc.com
southerngreengas.com.au
rondo.com
Image
๐€ ๐œ๐จ๐ฆ๐ฉ๐š๐ซ๐š๐ญ๐ข๐ฏ๐ž ๐จ๐ฏ๐ž๐ซ๐ฏ๐ข๐ž๐ฐ ๐จ๐Ÿ ๐ฌ๐ž๐ฅ๐ž๐œ๐ญ๐ž๐ ๐ƒ๐€๐‚ ๐œ๐จ๐ฆ๐ฉ๐š๐ง๐ข๐ž๐ฌ:

@Climeworks
@CarbonEngineer
MOF WORX
Carbon Collect
@MissionZeroTech

13/20

Details: Image
๐“๐ก๐ž ๐›๐ฎ๐ฌ๐ข๐ง๐ž๐ฌ๐ฌ ๐ข๐ง๐Ÿ๐จ๐ซ๐ฆ๐š๐ญ๐ข๐จ๐ง ๐จ๐ง ๐ƒ๐€๐‚ ๐ฎ๐ญ๐ข๐ฅ๐ข๐ณ๐š๐ญ๐ข๐จ๐ง/๐ฌ๐ญ๐จ๐ซ๐š๐ ๐ž ๐œ๐จ๐ฆ๐ฉ๐š๐ง๐ข๐ž๐ฌ:
โžก๏ธStorage and mineralization

Companies:
1) @CarbFix


2) @StoreggaEarth


3) Northern Lights (@NorLightsJV)


14/20

Details: carbfix.com
storegga.earth
norlights.com/work-with-us/
Image
โžก๏ธGreen fuel

Companies:
1) @Electrochaea


2) Algenol


3) @LanzaTech


15/20

Details: electrochaea.com
algenol.com
lanzatech.com
Image
โžก๏ธFood

Companies:
1) @AirProtein


2) @DeepBranchBio


3) @Solar_Foods


4) Valser


16/20

Details: airprotein.com
deepbranch.com
solarfoods.com
fastcompany.com/90281380/this-โ€ฆ
Image
โžก๏ธ Fertilizer

Company:
1) @CCmTechUK


โžก๏ธ Building Material

Companies:
1) @Carbicrete


2) @Carbon_Built


17/20

Details: ccmtechnologies.co.uk
carbicrete.com
carbonbuilt.com
Image
โžก๏ธOther materials

Companies:
1) @NewLightTech


2) Rubi Laboratories


3) @OriginMaterials


4) NIVEA MEN


5) @AetherDiamonds


18/20

Details: newlight.com/technology
rubi.earth
originmaterials.com
theindustry.beauty/nivea-men-to-lโ€ฆ
aetherdiamonds.com
Image
In conclusion, โ€œmarket-oriented research plays a vital role in DAC-based ventures. Tech related to the green production of sorbents, intelligent DAC system & strategic deployment exhibit promising potential for DAC startups. Effective mngmt is vital for advancement of DAC.โ€
19/20
๐Ÿ“ƒRead the review paper entitled โ€œReviewing direct air capture startups and emerging technologiesโ€ here:


#DAC
#DirectAirCapture

๐Ÿงต20/20 sciencedirect.com/science/articlโ€ฆ
Image
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More from @geoengineering1

Geoengineering Info Profile picture
Feb 11
๐ŸšจNew study finds #biochar made from bioenergy crops & residues in China could remove up to 1.88 GtCOโ‚‚/yr with optimized plant logistics and dedicated biomass.

At ~$10/tCOโ‚‚, far cheaper than #BECCS, it offers a scalable, cost-effective carbon removal (#CDR) pathway.

๐Ÿงต1/13 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
Geoengineering Info Profile picture
Feb 6
๐Ÿšจ๐Ÿ—ž๏ธMonthly #SolarGeoengineering Updates (Jan 2026)๐Ÿ—ž๏ธ๐Ÿšจ

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)๐Ÿงต1/11 Image
1๏ธโƒฃ ๐—จ.๐—ฆ. ๐—ฒ๐˜…๐—ถ๐˜๐˜€ ๐—จ๐—ก๐—™๐—–๐—–๐—– & ๐—œ๐—ฃ๐—–๐—– - Experts warn withdrawal could weaken SRM governance, deepen geopolitical mistrust, and accelerate fragmented or unilateral approaches.

2/11 Image
2๏ธโƒฃ ๐—”๐—ป๐˜๐—ถ-๐—ด๐—ฒ๐—ผ๐—ฒ๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด ๐—ฏ๐—ถ๐—น๐—น๐˜€ ๐—ถ๐—ป ๐˜๐—ต๐—ฒ ๐—จ.๐—ฆ. - New Arizona and Iowa state proposals target geoengineering, despite limited evidence and no active SRM programs.

3/11 Image
Read 12 tweets
Geoengineering Info Profile picture
Feb 5
๐ŸšจClimate pathways to 1.5ยฐC 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.

Details๐Ÿงต1/11 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 GtCOโ‚‚ per year:
โ€ข 3 GtCOโ‚‚/yr from forestation
โ€ข 3 GtCOโ‚‚/yr from BECCS
Even at this level, land pressures are already significant.
Read 12 tweets
Geoengineering Info Profile picture
Jan 30
๐ŸšจThe 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

Chapters๐Ÿงต1/15 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/10.100โ€ฆImage
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/10.100โ€ฆImage
Read 16 tweets
Geoengineering Info Profile picture
Jan 21
๐ŸšจIs 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.

DETAILS๐Ÿงต1/14 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
Geoengineering Info Profile picture
Jan 15
๐Ÿšจ2025 Year in Review: Solar Geoengineering Edition๐Ÿšจ

As we enter 2026, weโ€™re excited to share our yearly summary for #SRM: "Solar Geoengineering in 2025: Rays of Hope, Clouds of Doubt."

Hereโ€™s what we cover in this comprehensive review:๐Ÿงต1/11 Image
2/ ๐–๐ก๐š๐ญโ€™๐ฌ ๐ข๐ง๐œ๐ฅ๐ฎ๐๐ž๐ ๐ข๐ง ๐จ๐ฎ๐ซ ๐Ÿ๐ŸŽ๐Ÿ5 ๐ซ๐ž๐ฏ๐ข๐ž๐ฐ?
1๏ธโƒฃ Rising Temp & Escalating Climate Impacts
2๏ธโƒฃSRM Funding Announcements
3๏ธโƒฃTop SRM Stories
4๏ธโƒฃRestrictions & Bans on SRM
5๏ธโƒฃEssential SRM Reads
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7๏ธโƒฃResearch Highlights
8๏ธโƒฃOur Work Across Geoengineering Image
3/ 2025 was the third-warmest yr on record. @CopernicusEU shows the last 11 yrs were the warmest ever, with the global average temp in yrs 2023-25 exceeding 1.5 ยฐC. Top climate disasters caused $120B+ in losses, intensifying debates over mitigation, CDR & SRM. Image
Read 12 tweets

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