SEAO2
Climate Transformation Fund • Netherlands
Leveraging the ocean for carbon capture
Based in the Netherlands, SeaO₂ is developing a new atmospheric carbon removal method by leveraging the ocean, which has 150 times more carbon (as dissolved) compared to the atmosphere. SeaO2’s electrochemical oceanic carbon capture technology treats water to capture and store its CO₂ content, returning the treated water to the ocean’s surface layer where it can continue to absorb more CO₂.
Durable carbon removal (CDR)
CDR is one of the most crucial solutions to reach and maintain net-zero emissions and limit global warming. To counterbalance fossil emissions from the long carbon cycle, the carbon removed needs to be stored durably. While solutions for durably removing carbon are still nascent, pre-purchasing carbon removal from startups can help kickstart the sector, making it an affordable and climate-relevant solution in the future. When credits or certificates are bought, they will be retired, meaning they cannot be resold and will not be counted as financial instruments.
Ocean CO₂ capture
There are various approaches do Direct Ocean Capture. Many of the electrochemical ocean CO₂ capture methods split seawater into a basic and acidic solution using electricity. The basic solution, depleted of CO₂, is returned to the ocean to capture more CO₂. The acidic solution can be sold, neutralized with minerals, or used to produce hydrogen. Alternatively, the acidic solution can degas seawater, producing concentrated CO₂ for storage.
Durable carbon removal (CDR)
Namibia
PyroCCS pioneers sustainable industrial biochar carbon removal in the Global South, deploying its own low-cost, robust, pyrolysis systems powered by renewable energy and backed by a digital measurement and reporting solution. These plants efficiently convert invasive acacia bushes in Namibia, a significant threat to the savanna ecosystem, into high-quality biochar, while providing critical employment in regions with high youth unemployment rates. PyroCCS's scalable technology, which they are also offering as a solution to other project developers, not only captures carbon but also supports local agricultural and environmental recovery as well as food security.
Durable carbon removal (CDR)
South Africa
CHAI will work on the high impact project of transitioning a portfolio of hospitals in South Africa's Western Cape Province to renewable energy. This could be a high impact measure that is currently not occurring due to the limited capacity of the department of health and because of bureaucratic hurdles to innovative financial and energy contracts. The project has the potential to reduce emissions by hundreds of thousands of tons, and leverages CHAI's extensive experience in health sector procurement and innovative finance.
Durable carbon removal (CDR)
Tanzania
This project develops a mobile app for regreening techniques like Farmer Managed Natural Regeneration (FMNR). The app delivers real-time, location-specific advice directly to farmers' phones. This approach reduces intervention costs by eliminating the need for in-person visits to every location. We already support Justdiggit’s regular work since 2021, and now added this project because it builds on proven FMNR methods, increasing cost-efficiency and potential for rapid scaling in dry landscapes.