InPlanet lands second verified carbon removal issuance from same ERW site

By AI, Created 5:18 PM UTC, May 18, 2026, /AGP/ – InPlanet has secured a second round of verified carbon removal credits from its Serra da Mantiqueira project in Rio Claro, Brazil, marking the first repeat issuance from the same enhanced rock weathering deployment without adding new rock material. The milestone strengthens confidence that ERW can deliver durable, measurable removals at scale and could help lower market risk for buyers and project developers.

Why it matters: - The second verified issuance from the same enhanced rock weathering site shows carbon removal can be measured and credited more than once after a single application of rock material. - The result strengthens the case for ERW as a scalable climate infrastructure option, not just a one-off pilot. - Repeat verification could help reduce delivery risk for buyers and improve long-term portfolio planning. - The milestone may also support lower credit prices over time because project setup costs do not need to be repeated for each issuance.

What happened: - InPlanet received a second issuance of verified credits from Project Serra da Mantiqueira in Rio Claro, São Paulo, Brazil. - The batch totaled 153.89 credits. - The first verified issuance from the project came in late 2024 and totaled 235.53 credits. - The project became the first ERW site to receive repeat credits from the same area without reapplying rock material. - Isometric verified the credits under its Enhanced Weathering in Agriculture v1.0 Protocol. - Each credit represents one metric tonne of durable carbon dioxide removal.

The details: - Project Serra da Mantiqueira has now delivered 389.42 tonnes of verified CO₂ removals in total. - The credited area covers about 520 hectares of sugarcane farmland. - The project uses locally sourced basaltic rock powder applied to agricultural soils. - The rock weathering process pulls atmospheric CO₂ into stable bicarbonates stored for more than 1,000 years. - The project is InPlanet’s inaugural project and the first ERW project issued on the Isometric Registry. - The project has received a post-issuance A-rating from independent ratings firm BeZero. - The deployment is carried out on sugarcane fields with a local Brazilian farmer in São Paulo state.

Between the lines: - The key shift is from proving that ERW can work once to proving that the same site can keep generating verified removals over time. - That matters because open-system carbon removal technologies often struggle with measurement and verification at scale. - ClimeFi’s early forward offtake commitment helped finance the deployment, showing how advance buyer support can unlock projects before credits are issued. - The repeat issuance also signals growing confidence in the monitoring frameworks needed to audit ERW continuously. - Tom Sellers, head of registry operations at Isometric, said the first issuance proved the technology could be measured and verified, and the second issuance proved it can be done repeatedly. - Felix Harteneck, InPlanet’s CEO and co-founder, said the result shows carbon removal can operate as infrastructure, delivering measurable climate impact year after year. - Victoria Harvey, head of CDR at ClimeFi, said repeat issuance from a single rock application is a meaningful step forward for ERW credibility.

What’s next: - InPlanet will likely lean on repeat verification to support additional forward commitments and broader commercial deployment. - Buyers may use the project as a reference point for building longer-duration carbon removal portfolios. - The market will watch whether repeat issuance helps ERW move closer to standardization and compliance-market acceptance. - InPlanet says the achievement should improve reliability across the sector by reducing delivery risk.

The bottom line: - The second issuance from Serra da Mantiqueira turns ERW from a promising demonstration into a more bankable carbon removal pathway.