This study uses carefully designed laboratory experiments to explore the potential of cement and lime kiln dust as feedstocks for ocean alkalinity enhancement, providing new insights into their capacity to enhance CO₂ uptake and counteract ocean acidification. By quantifying dissolution kinetics, alkalinity release, and potential carbon dioxide removal, the authors highlight both the promise of these widely available industrial by-products and the limitations associated with scalability and environmental impacts. Importantly, the work offers a balanced assessment of the benefits and risks of kiln dust deployment, making it highly relevant to the scientific community and to broader discussions on viable and responsible carbon dioxide removal strategies.