Why Enhanced Rock Weathering?
Natural weathering is slow. ERW tilts the balance — transforming CO₂ into stable minerals in soil to close the gigaton carbon gap.
Fertilizer that puts CO₂ back in the soil
Finely milled basalt on cropland can lock >1 ton CO₂/ha/yr and improve soil health. Join us to scale the world's most cost-effective carbon-removal solution.
Explore the scienceEnhanced Rock Weathering
How it works
Rainwater + CO₂ form carbonic acid → dissolves basalt → releases Ca & Mg ions → binds CO₂ as bicarbonate and carbonates.
We speed up nature
By micronizing basalt and dispersing it across cropland, we boost weathering rates by ~1,000× versus natural rates.
Soil & crop benefits
Instead of lime, we provide basalt minerals that buffer soil pH, add nutrients, and support healthier yields while removing carbon.
Carbondrop Matrix™ — Same Minerals, Smarter Delivery
01
Farm-Ready Deployment
Our hydrogel-based pellets anchor in the root zone and can be applied using standard farm equipment.
02
Nutrient & Water Retention Boost
We release Ca, Mg, K while improving water retention under dry conditions—adding agronomic value today.
03
Faster Carbon Mineralization
The hydrogel matrix optimizes basalt-soil contact, accelerating CO₂ → carbonate conversion.
04
Designed for Scale
Easy to store, bulk transportable, and capable of being spread with existing tools.
Scaling Carbon Removal to Climate Relevant Levels
We are building an ecosystem-first carbon removal platform — enabling gigaton-scale CO₂ drawdown through soil-based solutions.
We partner with farmers across Europe to deliver climate impact and promote regenerative agriculture. Science is central.
Every project is measured, verified, and transparently reported.
See how we verify carbon removalScience set to scale
We permanently lock away CO₂ with basalt-powered Enhanced Rock Weathering
01
Sourcing Basalt Feedstock
Repurposing basalt mine waste
02
Micronize Basalt Logistics
100 µm powder for rapid weathering
03
GPS-Guided Field Spreading
Accelerating CO₂ to carbonate conversion
04
Soil Sampling
Tracking pH and bicarbonate build-up
05
MRV analyses
Measuring formed carbonates
06
Data-Driven Field Insights
Remote soil data analytics
Carbondrop CDR
High-integrity carbon credits
Registration
Every credit is issued from a verified project and tracked through a digital registry from birth to retirement.
Peer-reviewed
Built on measured geochemistry, not guesswork
Enhanced rock weathering is one of the most scalable carbon-removal pathways available today. We combine field measurements, geochemical tracers, and independent MRV so every tonne of CO₂ removed is traceable from atmosphere to mineral.
3:1
Rock to CO₂
Roughly three tonnes of finely milled basalt remove one tonne of atmospheric CO₂ — a well-characterised stoichiometry grounded in silicate weathering chemistry.
MRV
Measured, not modelled alone
Soil sampling, geochemical tracers, and process modelling are combined so every credit reflects real carbon locked away in the field.
10k+
Years of storage
Once dissolved as bicarbonate and carried to the ocean, CO₂ is stored in stable mineral forms for millennia.
Reference library · 27 papers
Know a study we should include? Send it to peter@carbondrop.net
FAQ
Questions & Answers
Everything you need to know about Carbondrop, enhanced rock weathering, and how we remove carbon at scale.