Thursday marks the kickoff of the third annual International Atmospheric Water Harvesting Summit, hosted at Arizona State University. Atmospheric water harvesting is an intriguing new frontier in water science. The idea is relatively simple: in addition to harvesting from rivers and recycling groundwater, what if we could tap into the water reserves floating in the air around us? Research into atmospheric water harvesting is still in its early stages. The Show spoke with one of the presenters at this year’s summit: Carl Abadam, a Ph.D. student at the University of New Mexico. Abadam said the first challenge is figuring out how to extract water from the air.