← Back to Services🏔️Heirloom — Enhanced Rock Weathering Carbon Removal
carbon-capture-tech • Climate Tech & Agriculture
Heirloom accelerates natural limestone weathering to capture CO₂ from the air and permanently store it in concrete and soil. Their enhanced weathering process spreads pulverized limestone on agricultural land, where it absorbs CO₂ within months instead of the natural centuries-long timeline. This dual-use approach also improves soil pH and crop yields for farming communities.
Features
- •Limestone-based carbon capture — no chemicals, no energy-intensive processes
- •Spreads on agricultural land, improving soil health and crop productivity
- •CO₂ permanently mineralized in soil and ocean alkalinity enhancement
- •Third-party verified via Watershed and Puro Standard certification
- •Dual benefit: carbon removal + agricultural soil remediation
- •Scalable to billions of tons using globally abundant limestone reserves
Benefits
- •Lowest-cost permanent carbon removal pathway ($150/ton at scale)
- •Farmers earn income from hosting limestone spreading operations
- •Restores degraded agricultural soils while capturing CO₂
- •Unlimited scalability — limestone is one of Earth's most abundant minerals
- •Carbon removal verified by independent ISO-accredited auditors