Where should the US build electrochemical marine CDR facilities? New study analyzed 38 coastal sites with seawater intakes and clustered them into 5 regional hubs.
Top ranked:
🔹 South (TX/LA) — cheapest energy
🔹 West — strong clean energy
🔹 Northeast — high removal capacity
Scored on CO₂ capacity, cost/ton, grid emissions, social vulnerability & hydrogen infra.
📊 CDR Daily Digest — 27 Feb
• First US marine CDR bill introduced (ReSCUE Oceans Act — bipartisan, Murkowski/Schatz)
• WHOI ocean alkalinity trial: 2-50t CO₂ sequestered, no marine harm detected
• Forward carbon credit agreements hit $5.8B (+58% YoY)
• Sweden freezes BECCS project amid market uncertainty
• Stratos DAC plant on track for Q2 start-up
Full digest with sources: captaindrawdown.com/posts/2026-02-27-cdr-daily-digest/
#CarbonRemoval #CDR #ClimateAction #OceanCDR #DirectAirCapture
Big news for ocean CDR: WHOI's LOC-NESS trial sequestered CO₂ using sodium hydroxide off Cape Cod — no measurable harm to marine life.
2-50 tonnes removed, locked for thousands of years. First open-ocean alkalinity trial in the US.
pH returned to normal within days. Marine organisms showed no significant differences inside vs outside the alkalinity patch.
https://www.bostonglobe.com/2026/02/26/science/ocean-geoengineering-trial-results-whoi/
New US bill H.7656 just dropped: supporting marine carbon dioxide removal activities. Referred to the Science, Space & Technology Committee.
Ocean CDR is getting serious legislative attention — this matters for ocean alkalinity enhancement, seaweed sinking, and electrochemical approaches. Policy is finally catching up to the science. 🌊⚗️
The first EPA-permitted ocean alkalinity enhancement field trial — and results are being presented TODAY at #OSM26 in Glasgow. 🌊
WHOI's LOC-NESS project tested adding alkalinity to seawater in the Gulf of Maine to lock CO₂ in the ocean.
If the science checks out, OAE could be a massive CDR pathway. Transparency and community engagement are key.
The idea of storing carbon dioxide (CO2) in the ocean, also referred to as ocean carbon dioxide removal (CDR), involves a range of methods to enhance the ocean's capacity to absorb more CO2 from the atmosphere. This approach is gaining increasing attention as a potential solution to tackle the adverse effects of climate change.
#OceanCDR #CarbonDioxideRemoval #ClimateChangeMitigation
https://www.sciencenews.org/article/ocean-carbon-removal-climate-change
4️⃣ 🌊 Immerse in the #climateaction future! Join us on Sept 22, 9-12 PM ET, partnered with Ocean Visions for "Real Solutions or Expensive Distractions?" which delves into ocean-based CO2 removal's 5-year potential. 🗓️🔍 Discover #OceanCDR insights: https://events.columbia.edu/go/OceanbasedCO2Removal
3️⃣ 🌊 Dive into the future of #climateaction at our in-person event on Sept 22, 9-12 PM ET hosted with Ocean Visions! Take part in "Real Solutions or Expensive Distractions?" to explore ocean-based carbon dioxide removal's potential in the next 5 years. 🗓️🔍 #OceanCDR https://events.columbia.edu/go/OceanbasedCO2Removal
🌍 🌊 Happy #EarthDay2023! Today, we shine a spotlight on the ocean's power to combat #climatechange, including through ocean-based #carbondioxide removal strategies. Read about the Sabin Center' for Climate Change Law's work in this area: https://blogs.law.columbia.edu/climatechange/2023/04/21/harnessing-the-oceans-power-to-combat-the-climate-crisis/ #OceanCDR #carboncaptureandstorage #Ocean #ClimateAction
🌊 We released model legislation, with support from Ocean Visions, to advance safe & responsible #ocean #C02removal research in US waters: https://buff.ly/3YOXyO7 #OceanCDR #climateaction
🌊🌱
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RT @Mar_Walimai
#jobalert I am hiring a biogeochemical modeller to study the potential of #sargassum for #OceanCDR If you have the skills and want to find solutions to the climate crisis, apply before 19.03.2023 @CDRmare @AWI_Media https://jobs.awi.de/Vacancies/1322/Description/2
https://twitter.com/Mar_Walimai/status/1640994296366080000
Today, we with support from Ocean Visions published model federal legislation to advance safe & responsible #OceanCDR research in U.S. waters.
Korey Silverman Roati & Romany Webb outline the proposed new legal framework: https://blogs.law.columbia.edu/climatechange/2023/03/15/developing-model-federal-legislation-to-advance-safe-and-responsible-ocean-carbon-dioxide-removal-research-in-the-united-states/
Paper is available here: https://scholarship.law.columbia.edu/sabin_climate_change/199/
Our deputy director Romany Webb participated in roundtable discussions at this week's Aspen Ideas: Climate! event series, where she discussed scaling terrestrial CDR and creating a code of conduct for #OceanCDR.
👏👏👏
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RT @CarbonGap
What is “just and principled” #carbonremoval?
It starts with public engagement.
Carbon Gap’s Kayla Cohen went to a consultation with a local community in #Cornwall for an #oceanCDR project 🌊 – new on our blog.
https://bit.ly/3Ztd7fO
https://twitter.com/CarbonGap/status/1633415324396658688
🌊🌿 Happy #WorldSeagrassDay! Today, we recognize the important role #bluecarbon plays in mitigating #climatechange impacts.
🔎 We invite you to check out our #OceanCDR page on our CDR Law database, which i: https://cdrlaw.org/technical-pathway/coastal-blue-carbon/
Ocean Conservancy is hiring! Seeking an early-career person with skills in developing coalitions and leading the production of coalition products! Details here: https://oceanconservancy.org/job/2023-142-climate-science-coordinator/ #climatejobs #oceanjobs #cdr #oceanCDR #environmentaljustice #OceanJustice
🌊💰⬇️
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RT @LKapsenberg
7 weeks left!!!
Recipe to break into #OceanCDR research NOW:
1. Join this network 👥
https://tinyurl.com/NOPPmCDRnetwork
2. Find cross-sectoral collaborators 🤝
https://tinyurl.com/NOPPmCDRnetworkdatabase
3. Apply for funding 💵
https://tinyurl.com/NOPPfunding
*proposals due 28 Feb 2023*👩💻
https://twitter.com/LKapsenberg/status/1612800022839451650
#Introduction post—I’m trained as a #carboncycle #scientist, both #observations and #models. Now I work in #sciencepolicy, focused on #climateaction and #evidencebased #decisionmaking. I’m based in the #usa but just about to go to #cop27 and present #ipcc report results on #ocean #climateimpacts and #adaptation. I’m also getting involved in #oceanCDR to advocate for high standards of evidence and a research #codeofconduct. I’m a voracious #reader and raising the next generation of #socialjustice / #climatejustice / #environmentaljustice warriors. Rock #music is our house’s soundtrack. #snark is our hobby.
