<p>A new electrochemical reactor design developed with Marta Hatzell by postdoctoral scholar Hakhyeon Song (middle) and Ph.D. students Carlos Fernández and Po-Wei Huang (seated) converts carbon dioxide removed from the air into useful raw material. Their approach is cheaper and simpler while requiring less energy, making it a promising tool to improve the economics of direct air capture systems. (Photo: Candler Hobbs)</p>