Turning Stone into Climate Action
Discover how crushed basalt removes CO₂ from the air — naturally, safely, and permanently through Enhanced Weathering.
What is Enhanced Weathering?
Enhanced Weathering (EW) accelerates the natural breakdown of rocks like basalt to capture CO₂. In the presence of water, basalt releases calcium and magnesium which bind CO₂ and form stable carbonates in soils and waters.
- Proven geochemistry — no added chemicals required
- Compatible with agriculture
- Scalable and globally available
Why Basalt?
Basalt is rich in the elements that bind CO₂ (Mg, Ca, Fe), is non‑toxic, and already widely used in agriculture and construction. Compared to other rocks, basalt offers a strong balance of CO₂ capacity, safety, and cost.
| Rock | CO₂ Capacity | Soil Safety | Cost |
|---|---|---|---|
| Basalt | ★★★★☆ | ✅ Safe | 💰💰 |
| Olivine | ★★★★★ | ⚠️ Heavy metals risk | 💰💰💰 |
| Carbonates | ★★☆☆☆ | ✅ Safe | 💰 |
What Makes Balkan Basalt Special
- Chemistry: CaO 9.83%, MgO 6.62%, Fe₂O₃ 14.01%
- Safe for agriculture: Nickel < 0.01%
- Large reserve: ~110M tons suitable for EW
- Estimated lifetime CO₂ capacity: 22–27.5M tons
- Verified by Deltares Study (2025)
Deltares Verified
Independent review of chemistry and EW potential
Measured & Modeled Impacts
- Rule of thumb: 4–5 tons basalt → 1 ton CO₂
- Baseline: up to 10% CO₂ by mass can be captured over time
- Field results vary with pH, rainfall, grain size, biology
Quick Estimator
Enter basalt tonnage to estimate potential CO₂ removal (rule‑of‑thumb).
Carbon Credit Certification
Basalt EW projects can align with leading carbon removal methodologies:
- Puro Standard (ICROA‑endorsed)
- Isometric Protocols (science‑based MRV)
We can support partners on MRV design and certification pathways.
Co‑Benefits in Agriculture
- Raises soil pH and reduces acidification
- Improves nutrient retention (N, P, K, Mg)
- Boosts crop yields and resilience to stress
- No heavy metal accumulation observed in key crops
Download & Engage
Get the science, specs, and next steps.