There are new technologies that promise to help solve many of the world’s biggest water supply challenges. Those tools and systems were part of the focus of the recent International Atmospheric Water Harvesting Summit at ASU. The Fulton Schools were among hosts of the event, which as chaired by Paul Westerhoff, an ASU Regents Professor in the School of Sustainable Engineering and the Built Environment, part of the Fulton Schools. In this article, Westerhoff answers questions about the world’s most pressing water supply and sustainability challenges and related economic challenges. The interview also explores the possibilities of harvesting water from the Earth’s atmosphere to prevent water shortages.