Enhanced rock weathering shows potential for CO₂ removal but measurement challenges remain

A technique called "enhanced rock weathering" could significantly increase carbon dioxide (CO₂) removal from the atmosphere by spreading crushed rocks on farmland. However, accurate measurement of CO₂ capture is essential for effective policy and regulation. Recent research found low CO₂ capture rates in tropical soils, despite significant rock weathering. This highlights the importance of considering soil type when estimating CO₂ removal potential, as results can vary widely based on various factors. While enhanced rock weathering shows promise for reducing greenhouse gases, current methods for measuring its effectiveness are not yet reliable. Further understanding of soil reactions and direct measurement techniques is needed to improve accuracy in CO₂ capture assessments.