• A new desalination method produces drinking water from seawater without chemical additives.
  • The solar-powered system uses specially engineered black metal to absorb sunlight.
  • Its self-cleaning surface separates and collects salts, instead of dumping them as harmful brine waste.
  • From the salts, the system can extract lithium, a key material for rechargeable batteries.
  • The approach could help address global water shortages and growing mineral demand. The United Nations