We have engaged with a variety of CDR projects and technologies across the globe. Our evaluation process aims to retain the most promising carbon removal projects and involves collaboration with a diverse team scientific experts. You can explore our growing portfolio of projects or read about our standard criteria.
Project by Pathway
CarbonCapture makes modular Direct Air Capture (DAC) machines that can be connected in large arrays with the ambition to remove large amounts of CO₂ from the atmosphere. Due to the modular architecture of its technology, the project is particularly promising due to its combination of renewable energy (wind & solar) with geological storage close to the plant and first-time utilisation of Class VI injection for permanent carbon dioxide storage in deep saline aquifers.
Los Angeles, U.S.A.
Direct Air Capture
UNDO accelerates the natural weathering process by spreading crushed basalt on croplands, which helps increase the inorganic carbon impact in the soil. Their approach uses leading scientific models to project the CO₂ impact, whilst also helping to measure the positive impact on soil health and crop yield. The team is scaling their MRV approach to better measure the CO₂ impact over time, alongside plant-tissue studies to understand the positive ecosystem impact.
Accelerated Carbon Technology
InPlanet uses the power of enhanced rock weathering (ERW) to sequester CO₂ and revive tropical soils. InPlanet is partnering with local mines and quarries for rock sources and the University of São Paulo to set up MRV field stations, which will collect data on how different silicate rocks weather under various weather and soil conditions throughout Brazil. While most ERW studies have been conducted in Europe and North America, InPlanet is bringing this technology to Brazil, where warmer and wetter conditions are expected to lead to increased weathering rates and faster CO₂ sequestration.
Sao Paulo, Brazil
Sonnenerde uses pyrolysis, a process under which waste biomass is heated without oxygen to produce carbon-rich biochar, which is highly stable and can sequester carbon for multiple centuries. Biochar also acts as a soil enhancer when applied in soil, reducing erosion and increasing soil fertility. Sonnenerde is a European biochar production pioneer, with its first biochar facility built in 2012.
Project Vesta is developing a coastal weathering solution to store CO₂ permanently. The process accelerates the natural chemical weathering of the mineral olivine by spreading large amounts of ground olivine-containing rock onto coastlines where it can dissolve in seawater, thereby increasing the rate of CO₂ absorption by the ocean. The process also helps counteract ocean acidification.
San Franscico, U.S.A.
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Our Standards Criteria
Rigorous demonstration of the following criteria is most critical qualifying step as part of our purchasing process
The carbon must be removed and stored for at least multiple centuries, with low reversal risk.
Rather than taking credit for removal that was already going to occur, net new removal is ensured.
Ensure that the carbon credits represent an overall net reduction in atmospheric CO2.
Rigorous, transparent, scientific methods have been (or will be) used for monitoring and verifying the removal.
Safety & legality
Project is working towards the highest standards of safety, compliance, and local environmental outcomes; actively mitigates risks and negative environmental and other externalities on an ongoing basis.
NB: Co-benefits are not part of our standard criteria. Carbonx however values co-benefits positively in the context of a potential collaboration
Additional Assessment Criteria
In addition to our Standard Criteria, we also review the following standards. The degree to which those criteria are reviewed depends on the structure and specificities of the collaboration.
Commercial & financial
Credible path and roadmap between current data and future carbon removal delivery projections.
Team & operational capacity
Credible team and project partners to achieve projected outcome.
MRV and TEA
Credible path to MRV addressing all regulatory requirements and high-fidelity TEA in place.
High degree of certainty of low ecosystem impact.
Review of potential risks and mitigation strategies.
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