Methodology for Atmospheric Carbon Removal through use of Volcanic Basalt Soil Treatments

The proposed methodology applies to project activities that treat agricultural land with crushed volcanic basalt, which draws down atmospheric CO2 via chemical reactions for long-term carbon sequestration. The proposed methodology applies to a wide range of agricultural practices in temperate, semi-tropical, and tropical climate zones.

The methodology idea note was submitted by Carbon International (external). On March 31, 2026, the development of this methodology was archived per the VCS Methodology Development and Review Process (PDF) due to the following reasons:

• Overlap with broader internal strategies related to the potential for enhanced rock weathering as a viable project activity for a future VCS methodology(ies). (M0287).

Stakeholders interested in collaborating during methodology development or developing projects that this methodology might enable are encouraged to contact methodologies@verra.org. Please include Methodology Development ID# M0246 in the subject line.