CDR Archives

Agronomic benefits of basalt rock powder on citrus farms: Insights from Project Aracari

4 Dec 20251 Dec 2025 by InPlanet Team

Introduction InPlanet achieved the next historic milestone in the Carbon Dioxide Removal (CDR) landscape with its second issuance (and only fourth ever globally) of certified Enhanced Rock Weathering (ERW) carbon credits from Project Aracari. A total of 319.97 tCDR were verified for this project via the deployment of basalt on citrus orchards. The carbon credits were the 2nd issued under the Isometric enhanced weathering protocol, following InPlanet’s issuance of the world’s first ERW carbon credits at the end of last year. They were independently verified by 350 solutions. From this project, 200 tonnes have been delivered to our partner, Klimate. … Read more

Learnings from InPlanet’s first deployment

11 Sep 20258 Sep 2025 by Dr. Matthew Clarkson

Authors: Matthew Clarkson, Christina Larkin, Junyao Kang Acknowledgements We gratefully acknowledge the support and contributions of the many individuals that made this deployment a reality including the mining and farming partners, Antonio Azevedo, Mariane Chiapini, Jessica Ferrarezi, Marcella Daubermann, Veronica Furey, Niklas Kluger, David Manning, Murilo Nascimento, Elisabete Pedrosa, Igor Nogueira, Bruno Ramos, Felipe Reis, Mayra Maniero Rodrigues, Leticia Schwerz, Karla Nascimento Sena, Philipp Swoboda, Jeandro Vitorio Reviewed by: Zeke Hausfather, Frauke Kracke Introduction Robust and transparent Measurement, Reporting, and Verification (MRV) is paramount for establishing the credibility of the nascent Enhanced Weathering (EW) industry. For EW, translating theoretical geochemical … Read more

Climate policy and Enhanced Rock Weathering

5 Jun 20256 May 2025 by InPlanet Team

Yale School of the Environment event led by Anu Khan Recently, the Yale School of the Environment hosted a series of events focused on Enhanced Rock Weathering (ERW). One of these events centered on Climate Policy and ERW was led by Anu Khan, Founder and Executive Director at the Carbon Removal Standards Initiative. This webinar introduced attendees to the interconnections between climate policy and carbon removal strategies, particularly how Climate Policy and Enhanced Rock Weathering is a scalable solution to climate change. Understanding climate policy foundations The session began with an overview of key international climate frameworks, particularly the Paris … Read more

The rich mosaic of soil heterogeneity, and how to navigate its complexities

16 Apr 202528 Mar 2025 by InPlanet Team

A critical component of enhanced rock weathering (ERW) projects is quantifying carbon dioxide removal (CDR) at field scale. Carbon dioxide removal with ERW is tracked using multiple phases (gas, liquid, and soil) at InPlanet. In addition to other phases, a key component of monitoring weathering rates is done by analyzing soil samples. Combined with other measurements, determination of weathering rates in soils may be related back to carbon dioxide removal at the field scale. However, to do this suppliers like InPlanet must balance operational feasibility, cost, and data quality. This is a major challenge when determining a standard operating procedure … Read more

Rock powder dissolution and carbon capture: How to best understand it

21 Mar 202521 Feb 2025 by InPlanet Team

In this blog, Dr Junyao Kang, Data Analysis and Modeling Lead, and Dr. Matthew Clarkson, Head of Carbon at InPlanet share about Rock Powder Dissolution and Carbon Capture processes, CO₂ capture quantification, and the challenges posed by fertilizers. The dissolution process and cation release At the core of Enhanced Rock Weathering (ERW) is the dissolution of rock powder, which releases essential cations into the soil system. As Dr. Junyao Kang explains: “You can see all these dark particles as our rock powder spreads onto the surface of the soil. We see dissolution happening, releasing important cations for our enhanced rock … Read more

Understanding losses and adjustments to carbon dioxide removal estimates

21 Mar 202521 Feb 2025 by InPlanet Team

Imagine holding a giant sponge, and your job is to soak up as much water as possible. But along the way, some water drips off, some gets absorbed by other things, and some even turns into steam! This is similar to how scientists try to remove carbon dioxide (CO₂) from the air using special kinds of rock powder. These losses and adjustments in carbon dioxide removal efforts show that, just like our sponge, not all of the CO₂ stays where we want it. Losses and adjustments in carbon dioxide removal are inevitable in this process. Importantly, we can measure these … Read more

How farmers can reduce fertilizer use and sequester carbon

14 Mar 202518 Feb 2025 by InPlanet Team

Inflation and rising input costs have put increasing pressure on farmers worldwide. With fertilizer prices soaring and environmental concerns growing, many are seeking sustainable alternatives. Enhanced Rock Weathering (ERW) is emerging as a game-changing solution, offering a natural way to enrich soil, sustain high yields, and sequester carbon. By using this method, farmers can reduce fertilizer use and sequester carbon effectively. At InPlanet, our team of scientists, including Dr. Philipp Swoboda (Impact and Science Lead), Dr. Marcelo Santoro (ERW Regional Manager), and Dr. Mayra Maniero Rodrigues (MRV Researcher), is at the forefront of ERW research. Through extensive field trials, we … Read more

InPlanet welcomes AXA Switzerland as a new partner

14 Mar 20253 Dec 2024 by Eduardda Pivatto

InPlanet is thrilled to announce our new partnership with AXA Switzerland, a leader in innovative climate strategies and one of Switzerland’s top insurers. As part of its forward-thinking approach to addressing climate change, AXA Switzerland has committed to purchasing 1,950 Enhanced Rock Weathering (ERW) carbon removal credits from InPlanet until 2028. This milestone reflects AXA Switzerland’s dedication to scaling durable carbon removal technologies and supporting long-term climate solutions. From 2026 on, the AXA Group is focusing on supporting promising technologies that enable durable CO2 removal, like ERW. This shift allows AXA to contribute to scaling the CDR industry rather than … Read more

Webinar: Enhanced rock weathering in Brazil

21 Mar 202528 Oct 2024 by Eduardda Pivatto

InPlanet featured in an Exciting Webinar on Enhanced Rock Weathering! Ever wondered how we can use nature’s own processes to fight climate change? Watch this exciting webinar with InPlanet, hosted by our partner Klimate.co, which took place on November 13th 2024. Discover how InPlanet is revolutionizing agriculture with Enhanced Rock Weathering- a groundbreaking carbon removal approach that restores Brazil’s tropical soils. Participants will learn: How rock powder can durably remove CO₂ through ERW; The environmental and social benefits behind this solution; Exciting insights into InPlanet’s projects in Brazil. Don’t miss out on this chance to learn and get inspired by … Read more

Rock powders for tropical agriculture and enhanced weathering

14 Mar 202516 Sep 2024 by Dr Philipp Swoboda

Red tractor driving in the field. The sun shines in the background

Discover how silicate rock powders (SRPs) are revolutionizing tropical agriculture by boosting soil health, enhancing crop yields, and sequestering CO₂. Learn about InPlanet’s success in Brazil with sugarcane farming and the potential of SRPs to combat climate change.