Salt-Powered, Electricity-Free Cooling Promises Global Chill

Saudi KAUST researchers unveil Nescod (No Electricity and Sustainable Cooling on Demand), a salt-based cooling system that dissolves ammonium nitrate in water to absorb heat, dropping temperatures from 25°C to 3.6°C in 20 minutes without electricity; it regenerates via solar evaporation for repeated use, offering a potential drop in cooling energy use and emissions in electricity-scarce regions if scaled.