Hygroscopic hydrogels are emerging as scalable and low-cost sorbents for atmospheric water harvesting, dehumidification, passive cooling, and thermal energy storage. Polyacrylamide hydrogel disks. Image credit: Gustav Graeber / Carlos D. Díaz-Marín. “Humanity faces important challenges related to the global supply of energy and water,” MIT researcher Carlos Díaz-Marin and colleagues wrote in their paper. “Efforts in energy and water have...
