The Industry’s First Certified Carbon Credits in Enhanced Rock Weathering
Read the blog

Issued by:

Isometric Logo

Measurable. Scalable. Certified.

Scientifically rigorous Enhanced Rock Weathering

Pioneering scientific research to meet climate goals.

Nature’s co2 Removal

Rock Weathering

Rock weathering is a natural process that gradually removes CO₂ from the atmosphere on timescales of hundreds of thousands to millions of years. As part of nature’s portfolio of carbon removal mechanisms, rock weathering has regulated the Earth’s temperature throughout geological history and maintained the habitability of the planet. Moreover, the supply of nutrients and ions from rocks has been essential for the evolution and sustenance of life on land and in the ocean.

An illustration showing the CO2 molecule

CO2

From the air

+

An illustration showing H2O

H2O

supplied by the rain

+

Basalt Rock

Calcium and Magnesium

=

An illustration showing Bicarbonate

HCO3

Captured Carbon

How Enhanced Rock Weathering Works

What is Enhanced Rock Weathering?

1.

Mining and Processing

Rock residues are collected at basalt mines in Brazil, and processed on-site into a fine powder to be sent to farmers.

An illustration depicting a digger scooping rock powder

2.

Transportation

Rock powder is transported within 100km of the location of the mine.

An illustration depicting rock powder transported on the back of a trailer
An illustration depicting rock powder being spread on a farmer's field

3.

Spreading and Weathering

Our partner farmers spread the rock powder on their land, in line with their standard fertilization practices.

An illustration depicting the water pathway transporting stored carbon from the field to the ocean

4.

Sequestration

Following the first rainfall carbon removal happens as the CO2 dissolved in rainwater forms carbonic acid (H2CO3) and reacts with the basalt rock to form bicarbonate (HCO3-) a stable form of carbon which is eventually stored in the oceans for 10,000s of years.

Our Operations

Our Operations in Brazil

With Brazil’s unique conditions, InPlanet’s EW projects benefit from an ideal setting for scalable carbon removal. The country’s abundant basalt deposits allow for efficient, sustainable sourcing and transport, while its vast agricultural lands and tropical climate, with high temperatures and heavy rainfall, accelerate the carbon sequestration process compared to temperate regions. This favorable context makes EW more effective and also brings immediate benefits to farmers, such as enhancing soil health, increasing crop yields and reducing reliance on fertilizers—thereby supporting a sustainable and resilient agricultural future.

of annual rainfall on mineral depleted soils

of high quality rock powder residue

renewable-powered grid for low operational costs

certified for use in agriculture by
Brazilian regulation

An outlined map of Brazil indicating where InPlanet operates

[Silicate rock powders] must be seriously considered as soil amendment for strongly weathered soils in the humid- and subhumid tropics, since they could fill the unresolved and escalating gap for affordable and accessible K sources and micro-nutrient soil amendments, which neither conventional fertilizers nor liming can currently sufficiently address.

Swoboda et al., 2022, Science of the Total Environment 807

“We are excited to complete the blueprint for the first Enhanced Weathering credit issuance that transforms this emerging technology into a fully functioning part of the Voluntary Carbon Market (VCM.)”

Dr. Matthew Clarkson, Head of Carbon at InPlanet

This collaboration between InPlanet and Isometric has enabled a fully transparent and rigorous route to generating carbon credits via enhanced weathering.”

Dr. Christina Larkin, Head of Science at InPlanet

The approaches we review are grounded in established literature from the natural environment… The complexity inherent in open-system CDR pathways is navigable through surplus measurement strategies and well-designed experiments, which we highlight are critical in the early stage of the EW CDR industry.”

Clarkson, Larkin, Swoboda et al., 2024, Frontiers in Climate
Project Serra da Mantiqueira
Scalable. Measurable. Certified.

About our first project, inspired by an iconic Brazilian mountain range

Serra da Mantiqueira is mountain range in Brazil. Its name originated from ‘Amantikir’ and means “mountain that cries.” The project name reflects a symbol of cultural heritage and ecological diversity in southeastern Brazil.

Spanning approximately 320 kilometers (200 miles) across three Brazilian states—São Paulo, Rio de Janeiro, and Minas Gerais—the Serra da Mantiqueira is a natural marvel, rich in biodiversity, cultural significance, and natural beauty. The “Serra da Mantiqueira” project involves distributing locally sourced basalt rock powder across a ~1000 ha sugarcane plantation, at an application rate of 10t/ha. 

Learn more about the project
White version of the Isometric logo
White version of the ClimeFi logo
White version of the Adyen logo
Scientific Literature

InPlanet is dedicated to pushing Enhanced Weathering research forward through community contribution and open-access publications

Through our work we aim to increase access to our scientific publications to ensure the entire Enhanced Weathering community moves forward in our monumental goals of fighting climate change.
Read our peer-reviewed publication
Two tablet computers depicting a photograph of InPlanet's science team and a fullscreen view of a recent scientific paper
Our MRV

Our Rigorous Measurement Approach

At InPlanet, we are dedicated to scientific integrity and research, measuring a broad range of direct and indirect parameters in different physical components of the system that may be used to quantify carbon dioxide removal (CDR) or understand weathering reactions. This includes tracking weathering elements such as cations and metals, organic and inorganic carbon products, and secondary measures like pH. We examine the rock powders, soils, soil waters, vegetation, and gases to gain comprehensive insights into weathering processes.

Experiment Fundamentals

We are dedicated to getting the fundamentals right. In the lab we investigate weathering fundamentals in pots and column experiments. We examine variables such as the effect of different rock types in different soils, or the addition and interaction of different fertilizers. Some experiments include vegetation and are exposed to natural rainfall.

The Field Monitoring Station (FMS)

These stations are our flagship microplot studies, which we set up for every project. We intensively monitor weathering activity and plant and soil health in the natural environment. We use in-situ water collectors, gas flux chambers and take soil samples. We also collect meteorological data automatically via weather stations.

Extensive In-field Measurements

Sampling in the field reflects the real world complexity, incorporating all parameters that could affect weathering. This is essential to accurately quantify carbon removal and assess agronomic effects. All our CDR credits are based on in field samples with both liquid and solid phase measurements.

Science Advisory Board

Science Advisory Board

InPlanet is a science-first organization and aims to be rigorous and transparent in its commitment to the monitoring, reporting, and verification of carbon removal. In December 2023, we launched our Science Advisory Board to ensure oversight of our scientific strategy. Our Science Board members are leading academics from the field of enhanced rock weathering, and they independently provide direction and advice. We are always open to collaboration on scientific topics, so if you have an idea, please get in touch!

Get in touch
Profile photo of James Campbell

Dr. James Campbell

Heriot-Watt University, UK

Profile photo of Mathilde Hagens

Dr. Mathilde Hagens

Wageningen University & Research, Netherlands

Profile photo of Noah Planavsky

Prof. Noah Planavsky (volunteer)

Yale University, US

Profile photo of David Manning

Prof. David Manning

University of Newcastle, UK

Articles

News & Updates

Press

InPlanet Team

World’s First Enhanced Rock Weathering Carbon Removal Credits Issued

A New Frontier for the Voluntary Carbon Market BRAZIL, January 6th, 2025 –  Today, InPlanet and Isometric announced the first-ever …

Resource

InPlanet Team

What is Enhanced Rock Weathering?

Did you know that rocks can remove carbon dioxide from the atmosphere? Enhanced Rock Weathering accelerates the natural process of rocks removing carbon dioxide from the atmosphere.

CDR, ERW, Science

Press

InPlanet Team

InPlanet raises an oversubscribed Seed round to increase funding to €5,6M

InPlanet raised an oversubscribed Seed round to increase funding to €5,6M from leading impact, climate, and deeptech investors to become the leading Enhanced Rock Weathering company in the tropics

funding, Investment