The proposal could be defined as a CO2-scrubbing living machine. Treepods shall redesign in an urban radical new way our polluted urban environment; interacting with natural trees, and enhancing its carbon absorption capacity. In that way, those artificial trees don’t replace the natural ones, but they act like small urban “air cleaning infrastructures”. Advanced technologies are nowadays developed enough to allow the capture of the atmospheric carbon dioxide from ambient air in an efficient, economic and sustainable way. Developed by Dr Klaus Lackner, Director of the Lenfest Center for Sustainable Energy at Columbia University, this revolutionary process is based on the discovery of the ‘humidity swing,’ a technology that enables the energy-efficient capture of CO2 from air, allowing to close the carbon cycle and creating a valuable product for beneficial use.