The Innovation for Cool Earth Forum (ICEF) Roadmap on Carbon Mineralization is now available, it was officially announced and presented at COP26 in Glasgow. I grateful for the opportunity to contribute to this document and work with this team! An excerpt from the Enhanced Rock Weathering chapter I wrote:
“Enhanced rock weathering (ERW) involves dispersing ultramafic or mafic rock powder over large areas, such as agricultural fields. Calcium‐ and magnesium‐bearing minerals in the rock powder then react with atmospheric CO2, trapping the CO2 in groundwater and solid carbonates.
ERW offers gigaton‐scale capacity to capture and permanently store CO2. The main advantages of ERW are the simplicity of the approach, consistency with current mining and agricultural practices, and co‐benefits that may include improved soil fertility in some areas. The main challenges of ERW are the lack of widely accepted methodologies for determining CO2 removal rates and concerns about environmental risks from accumulation of metals, including nickel and chromium.”
Visit the Innovation for Cool Earth Forum website