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Jun 28 3 tweets 7 min read Read on X
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (22 June -28 June 2026):

📺:

🧵1/
Isometric raised $40M in Series A funding to expand its AI-powered carbon removal certification platform.
thetimes.com/business/entre…

Danone, Mars and partners launched a €150M Livelihoods Carbon Fund targeting 7-10 MtCO₂ removal through nature-based projects over 25 years.
esgtoday.com/danone-mars-ba…

Tencent selected 16 winners for CarbonX 2.0, awarding nearly $30M to climate technologies, including five CDR teams (AirCapture, Cella, Parallel Carbon, Octavia Carbon and Nanjing University).
tencent.com/en-us/articles…

Captura raised $12.5M in the first close of its Series B to expand its electrodialysis platform across critical minerals, CDR, and industrial markets.
capturacorp.com/captura-raises…

BioCirc launched Denmark's largest BECCS facility, targeting 32,500 tCO₂/year.
ccarbon.info/news/biocirc-o…

Paebbl launched Rebond 300, described as the world's first carbon-negative construction material with an EPD-verified carbon footprint of -149 kg CO₂ per tonne of material.
linkedin.com/posts/today-we…

Sumitomo Mitsui Banking Corporation invested in Deep Sky to support CDR and DAC market development in Japan.
newswire.ca/news-releases/…

Novo Nordisk and Re.green launched a 20-year project to restore 500 ha in Brazil, generating 87,000 carbon removal credits.
re.green/en/noticias/re…

Frontier approved Puro.earth's 2025 Enhanced Rock Weathering methodology for its suppliers.
view.news.eu.nasdaq.com/view?id=bc4dea…

CarbiCrete received $1M in funding from the Canadian government.
carbicrete.com/2026-innovativ…

FS signed an offtake agreement with Freepoint Commodities Europe for 10,000 BECCS carbon removal credits.
br.investing.com/news/commoditi…

Groundwork BioAg issued its first 19,568 verified carbon credits under the Rootella Carbon® program.
groundworkbioag.com/groundwork-bio…

44.01 joined ETH Zurich's CITru CO₂ injection pilot project in Switzerland.
4401.earth/blog/44-01-joi…

BeZero Carbon acquired AI climate data startup Cedar to strengthen carbon market due diligence.
esgtoday.com/carbon-credit-…

Siemens and Ucaneo partnered to accelerate commercial direct air capture deployment.
press.siemens.com/global/en/pres…

SaltX secured EU funding to demonstrate electrified, circular cement production with Holcim and Paebbl.
saltxtechnology.com/cision/saltx-s…

Rainbow has partnered with Clever Offsets to integrate its carbon credit registry into Clever's platform.
linkedin.com/posts/rainbow-…

MozBlue became Africa's largest validated blue carbon project after achieving Verra VM0033 validation, targeting 2.6 MtCO₂e from 30,000 ha of restored mangroves.
linkedin.com/posts/bluecarb…

The European Commission launched the CRCF Buyers' Club website to aggregate demand for certified CDR units.
climate.ec.europa.eu/eu-action/carb…

CRSI is seeking public input on a feasibility study assessing integrated CDR across mining, agriculture and wastewater sectors.
docs.google.com/forms/d/e/1FAI…

Gevo expanded its carbon business, making carbon removal a core growth strategy centered on its North Dakota BECCS project.
investors.gevo.com/news-releases/…

Biochar Europe reported 205 operational plants removed 170,000 tCO₂ through biochar carbon removal in Europe during 2025.
biochareurope.eu/resource/marke…
For more updates, subscribe to the Carbon Removal Updates Substack Newsletter:


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More from @geoengineering1

Jun 6
🚨Earth has a mysterious triple symmetry that may influence its climate

New research finds that a circle running along the 27° east & 153° west meridians divides the globe into 2 halves with equal reflectivity & this may have implications for #SolarGeoengineering schemes.🧵1/10 Image
2/ This study matters bcz Earth's reflectivity (albedo) controls how much solar energy stays in the climate system.

For decades, researchers knew the NH & SHemispheres reflect similar amounts of sunlight. But nobody had seriously looked for similar patterns across longitude.
3/ Using 25 years of satellite observations, researchers discovered that the 27°E meridian uniquely splits Earth into eastern & western hemispheres with almost identical reflected sunlight. Not 20°E. Not 40°E. Just one remarkably precise divide. Image
Read 12 tweets
Jun 5
🚨Monthly Solar Geoengineering Updates (May'2026)🚨

From Stardust’s SAI particle reveal to US Congress oversight calls, @ARIA_research funding, @UNEP report, EPRS governance briefing & UK public support for SRM research, key SRM headlines from May:🧵0/12

…largeoengineeringupdates.substack.com/p/monthly-sola…Image
Top 10 SRM Updates from May 2026

1️⃣ Stardust reveals SRM particle design:

Company discloses 0.5µm amorphous silica–based particles & calcium carbonate core–shell variants, deployed at ~18km altitude, targeting up to ~1% solar reflection with monitoring & dispersal systems.

1/ Image
2️⃣ US Congress requests @NOAA geoengineering briefing:

Lawmakers seek oversight on MCB & SRM research, citing governance gaps & transparency concerns.

2/ Image
Read 14 tweets
May 29
🚨A new @EarthsFutureEiC study tests an Arctic intervention: flooding winter sea ice with seawater to see if it can become thicker, brighter, and more resistant to summer melt.

The answer comes from a real field experiment in the Canadian Arctic.🧵1/11 Image
2/ The experiment was conducted in Cambridge Bay, Nunavut (Canadian Arctic) using a ~1 km² sea-ice field site.

Researchers divided the ice into control plots (no flooding) and treated plots (artificial flooding) to directly compare outcomes under identical conditions. Image
3/Process:

•Seawater was pumped from ocean
•Spread manually/with equipment over ice surface during winter
•H2O rapidly froze due to sub-zero air temp
•Process repeated in some plots multiple times over winter

Each flooding cycle added new frozen layer on top of existing ice Image
Read 13 tweets
May 22
🚨What if rocks could trap CO₂ faster than nature ever does, at the atomic scale?

A recent study reveals how water can dramatically accelerate CO₂ mineralization on mineral surfaces, unlocking faster long-term #CarbonStorage.

Details🧵1/9 Image
2/ For decades, scientists assumed CO₂ turns into stable carbonate rock through a slow, two-step process:

CO₂ dissolves in water → minerals dissolve → carbonates slowly form.

This made geological storage reliable, but extremely slow.
3/ But real-world observations didn’t fully match this slow picture.

In some environments, carbonate minerals form surprisingly quickly, suggesting an alternative, faster reaction pathway might exist.
Read 11 tweets
May 14
🚨Greenhouses can grow food in extreme climates, but they often depend on fossil-derived CO₂ inputs to maximize crop yields.

New study investigates whether Direct Air Capture (#DAC) could replace those emissions-intensive CO₂ sources by capturing C directly from air.🧵1/13 Image
2/ Researchers modeled a 1-ha sealed high-tech greenhouse in Jeddah, Saudi Arabia producing cherry tomatoes & lettuce under hot-arid conditions.

The system maintained ~1000ppm CO₂ conc, which are required to sustain high crop productivity in climate-controlled desert agri. Image
3/ The study evaluated two adsorption-based DAC systems:
• temperature-vacuum swing adsorption (TVSA)
• moisture-swing adsorption (MSA)

Both were benchmarked against conventional trucked liquid CO₂ enrichment currently used in commercial greenhouse operations
Read 15 tweets
May 8
🚨Monthly Solar Geoengineering Updates (April'2026)🚨

From EU calls for an #SRM deployment moratorium & WHO-linked health-centered governance report, to Stardust publishing its own SRM rules, key SRM headlines you need to know from past month:
🔗

🧵0/12 …largeoengineeringupdates.substack.com/p/monthly-sola…Image
Top 10 SRM Updates from April 2026

1️⃣ Stardust releases SRM “guiding principles”:

The private SRM company publishes voluntary rules and safety guidelines, but experts raise concerns over transparency, unknown aerosols, and private control of planetary-scale interventions.

1/12 Image
2️⃣ WHO-linked report calls for health-centered SRM governance:

A pre-print urges SRM governance centred on human health, equity, and Global South inclusion, stressing SRM must never replace emissions cuts (“non-substitution” principle).

2/12 Image
Read 14 tweets

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