The objectives of Architecture 2030 require strategies that rethink how we plan, design, and construct buildings in order to dramatically reduce greenhouse gas. One building strategy that has gained favor throughout some parts of the world and is currently growing in the U.S. is the idea of natural ventilation. This paper examines the case for natural ventilation—what it means for the build environment, how natural ventilation principles are applied, and a proven way forward for designers committed to the Architecture 2030 initiative.