Green hydrogen has a hidden problem and scientists may have fixed it

Green hydrogen could be a game-changer for the clean energy transition-but right now, its too expensive and still relies on harmful forever chemicals. A new EU-backed project called SUPREME aims to fix that by reinventing how hydrogen is made. Led by the University of Southern Denmark with partners across Europe, researchers are developing a PFAS-free electrolysis system that slashes the use of rare metals like iridium and dramatically cuts costs.