Enhanced Rock Weathering\nfor Carbon Removal–Monitoring\nand Mitigating Potential Environmental Impacts on Agricultural Land

Terrestrial enhanced rock weathering (ERW) is the application\nof\npulverized silicate rock to soils for the purposes of carbon removal\nand improved soil health. Although a geochemical modeling framework\nfor ERW in soils is emerging, there is a scarcity of experimental\nand field trial data exploring potential environmental impacts, risks,\nand monitoring strategies associated with this practice. This paper\nidentifies potential negative consequences and positive cobenefits\nof ERW scale-up and suggests mitigation and monitoring strategies.\nTo do so, we examined literature on not only ERW but also industry,\nagriculture, ecosystem science, water chemistry, and human health.\nFrom this work, we develop recommendations for future research, infrastructure,\nand policy needs. We also recommend target metrics, risk mitigation\nstrategies, and best practices for monitoring that will permit early\ndetection and prevention of negative environmental impacts.