Please join us for an introduction to #CDR startup accelerators! We've got a great panel lined up, with Tito Jankowski from AirMiners Launchpad, Mica Taborga Claure from Marble venture studio, and Marian Krueger of remove. Register here: luma.com/mxsdp8xm #energysky #carbonremoval
Resources for those tracking the science:
🔗 Carbon to Sea’s 2025 annual convening takeaways: www.carbontosea.org/2025/07/28/2...
🔗 @Ocean_Visions OAE Field Trials database: oceanvisions.org/roadmaps/oae...
🔗 @theNASEM report on Ocean CDR: nap.nationalacademies.org/catalog/2627...
Importantly, Planetary will make all collected data and metadata on efficacy verification as well as environmental monitoring available to the public following Carbon to Sea’s data management protocol.
www.carbontosea.org/oae-data-pro...
Today, Frontier announced an offtake agreement with Planetary, the team behind the world’s first OAE verified tons. Their work is part of a growing set of global projects scaling responsible testing of OAE under real-world conditions.
frontierclimate.com/writing/plan...
Evidence to date — from mesocosms, oyster hatchery interventions, and > a dozen controlled coastal pilots — shows ability to control pH within safe bounds, measurable CO₂ drawdown, and no acute harm to local biota for alkalinity addition at relevant rates.
OAE raises alkalinity by adding minerals such as Ca(OH)₂, and Mg(OH)₂. This shifts carbonate chemistry, allowing for additional CO₂ uptake while locally providing relief from acidification.
The ocean absorbs ~25% of human CO₂ emissions. That uptake is acidifying surface waters, stressing calcifiers, and weakening the ocean’s carbon sink.
Quick state of play on Ocean Alkalinity Enhancement (OAE): where the science stands, what recent trials show, and why it warrants careful, scaled testing. 🧵
Today is Day 2 of the public hearing on the EPA’s reconsideration of the 2009 endangerment finding, the key ruling underpinning U.S. greenhouse gas regulations. 🧪
Testimonies start at the top of the hour, and we’re following along: 👇🧵
The recent DOE climate science report misrepresents the work of many researchers. Carbon Brief asked those cited to review the parts of the report where their work was used, and we collectively found 100+ misleading or false statements: interactive.carbonbr...
absolute insanity - the new normal.
Karbonetiq: uses a low-cost, passive aeration system to mineralize industrial waste into Mg and Ca carbonates.
pHathom Technologies, Inc: develops a storage solution for concentrated CO2 streams (e.g., for biogenic emissions) based on limestone dissolution, storing the CO2 safely and durably in the ocean.
Limenet: develops an electric kiln for production of carbon-free lime for CDR approaches such as ocean alkalinity enhancement, mineral looping DAC or surficial mineralization.
Excited to announce another set of Frontier prepurchases! The field of carbon removal is maturing and we have selected three companies that work on compelling approaches to high scale, low cost approaches to CDR by leveraging abundant, alkaline materials:
frontierclimate.com/writing/summ...
🔌💡 Our @silviomarcacci.bsky.social's recent piece analyzes how the #energy provisions of the “One Big Beautiful Bill” would cost our #economy years of growth with 830,000 lost jobs, $1.1 trillion less GDP, and 50 percent higher power prices 👇 www.forbes.com/sites/energy... #energysky #greensky
Hey! Project Drawdown is hiring a Director of Business, Philanthropy, and Investor Partnerships!
Important role. Amazing team. Remote position, anywhere in U.S. Excellent salary and benefits.
Come join us!
drawdown.org/careers/dire...
Adding carbon removal to a waste to energy plant is a no brainer - excited about this first project with Hafslund Celsio!
This is all so f**ed. Hope grantees will be able to keep their funding and progress the science! Hold on!
Frontier has facilitated its first electrochemical DAC offtake with Phlair.
Phlair has the potential to deliver ultra low-cost DAC for a few reasons—one being that their approach is explicitly designed to work with cheap intermittent energy sources like solar.
frontierclimate.com/writing/phlair
🚨Postdoc Offer🚨
Fully funded 2-year research position at Paris or Aix-en-Provence: your choice!
The project aims to predict OAE feedbacks and environmental impacts in the ocean interior, in particular at the seabed.
See job ad : nuage.osupytheas.fr/s/4zMfHFZ8S2...
Please share widely! ⚛️
Want to support the students getting involved in the fighting climate change? Please consider supporting the Carbon Removal Challenge!
All funds go directly to the finalist teams to cover travel & lodging so they can present to industry leaders in NYC!
fundrazr.com/carbonremova...
Frontier is accepting applications for our 2025 prepurchase track!
1. We’ll now accept applications on a rolling basis (vs batched).
2. We’re explicitly focused on companies that fill gaps in the field or in our portfolio.
Read more and apply: frontierclimate.com/apply/prepur...
all sad and true
Are you a student working on or wanting to work on CDR? This is an amazing opportunity!
As part of our Microbes and Space special issue, Dr Nils Averesch (@nils-averesch.bsky.social) reveals how his research on microbial plastic production could pave the way for thriving human settlements in space. www.the-microbiologist.com/careers/towa...
Our annual letter is a good state of the CDR field pulse check
Are we there yet? No.
Have we come a long way? Hell yes!
Onwards
frontierclimate.com/writing
