Applying certain minerals to soil can help capture carbon dioxide

Applying certain minerals to soil can help capture carbon dioxide (CO₂) from the air through natural chemical and biological processes. Here are three ways this can be done:

1. **Enhanced Rock Weathering**: Crushed calcium- and magnesium-rich rocks spread over soil react with CO₂, removing it from the atmosphere and forming stable, dissolved carbonates. This approach could sequester significant amounts of CO₂ in soil and water systems over time.

2. **Mineral-Enriched Biochar**: When plant material (biomass) is turned into biochar by heating it without oxygen, carbon is stored in a long-lasting form. Adding minerals during this process increases carbon storage and makes the biochar more stable, supporting long-term carbon capture.

3. **Soil Organic Carbon Boost**: Minerals can also be applied to soil to increase its natural carbon storage by creating stable organic carbon forms. These minerals help protect organic matter, keeping carbon stored in the soil.

Together, these methods create synergies that maximize CO₂ removal potential and enhance environmental and economic benefits. When used with the right minerals, they support carbon sequestration in soil and help reduce atmospheric CO₂, contributing to climate goals.