Key Takeaways
- InPlanet and Isometric have issued the first-ever verified carbon dioxide removal (CDR) credits using Enhanced Rock Weathering (ERW)
- The credits were delivered to Adyen and facilitated by ClimeFi, marking a breakthrough for the voluntary carbon market
- The deployment took place in São Paulo State, Brazil, where ERW is accelerated by tropical climate conditions
- Isometric’s MRV protocol confirms each credit represents one tonne of CO₂ durably removed
- Verified ERW data will be shared through Cascade Climate’s Data Quarry to support global scientific research
First InPlanet Verified ERW Carbon Credits Mark Major Step for Carbon Markets
InPlanet, a climate-tech company focused on carbon removal through Enhanced Rock Weathering (ERW), has partnered with verification provider Isometric to issue the first scientifically verified ERW carbon credits. The credits were delivered to global payments platform Adyen and facilitated by carbon finance intermediary ClimeFi, creating a new high-integrity standard in the voluntary carbon market.
ERW mimics and accelerates the natural process of rock weathering, which sequesters CO₂ for over 10,000 years. The method involves spreading finely ground silicate rock—such as basalt—on farmland, where it reacts with atmospheric CO₂ in soil moisture, forming stable bicarbonates. This first verified issuance shows that durable, scalable, and transparent carbon removal is possible using ERW.
Brazil’s Climate and Soils Enable Scalable Carbon Removal
The credits correspond to InPlanet’s recent deployment at its Serra da Mantiqueira project in São Paulo State, Brazil. The region’s abundant basalt deposits, high temperatures, and heavy rainfall make it an ideal environment for accelerated mineral weathering, enabling faster CO₂ removal compared to temperate climates.
“At InPlanet, we’re transforming enhanced rock weathering into a scalable climate solution by partnering with farmers across the tropics,” said Felix Harteneck, Founder & CEO of InPlanet, in comments shared with EU Startups. “In just two years, we’ve established ourselves as one of the most trusted and scientifically rigorous CDR companies worldwide.”
In addition to carbon removal, InPlanet’s approach improves soil health, increases crop yields, and supports a low-input, sustainable agricultural transition.
Verified Measurement Brings Rigor to Enhanced Weathering
Isometric’s verification protocol for ERW, introduced with these first credits, requires direct, field-based measurements and statistical proof that CO₂ has been removed. The method ensures that every credit represents one tonne of CO₂ durably sequestered, addressing long-standing concerns about monitoring and permanence in open systems.
“These world-first Enhanced Weathering credits are a key step to scaling carbon removal,” said Eamon Jubbawy, Founder and CEO of Isometric. “They bring an unprecedented level of scientific rigor to a pathway that has great potential, but which has lacked robust verification until now.”
Verified data from InPlanet’s ERW projects will be anonymized and contributed to Cascade Climate’s Data Quarry, the first-ever ERW data-sharing system. This will provide researchers with access to commercial-scale, verified data for improving carbon models and methodologies.
Facilitating Market Access and Climate Accountability For InPlanet
ClimeFi, a platform that helps organizations purchase high-quality carbon removals, facilitated the transaction and emphasized the role of ERW in future climate strategies.
“The delivery of the world’s first CDRs from EW is a breakthrough moment,” said Paolo Piffaretti, Co-founder and CEO of ClimeFi. “We are proud to have facilitated this first-of-its-kind collaboration, helping Adyen take a significant step towards their climate goals.”
The credits are now listed on the Isometric Registry, a public platform offering complete traceability and data transparency for all issued credits. This registry enables buyers, researchers, and policymakers to evaluate the full scientific basis of each credit.
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