Australia sees big opportunity in hydrogen energy

Over the next 10–20 years, motor vehicles and trains powered by carbon-free hydrogen fuel cells could become commonplace. With limits on greenhouse gas emissions looming and with their streets choked with exhaust, Japan and other energy-importing East Asian nations are already searching abroad for sources of readily usable hydrogen.   Physics Today 72, 5, 28 (2019); https://doi.org/10.1063/PT.3.4200