Clean Hydrogen Use Gaining Momentum in Countries

Less than two months after arguably the most important summit on climate change in history, countries are considering ways to slow global warming and steer the world toward a more optimistic environmental future. Some of the measures that leaders agreed to take at the U.N. Climate Change Conference, or COP26, are nothing new: phasing down the use of coal power, halting deforestation and cutting methane emissions.

One other part of the solution might not be front-of-mind for everyday people, but experts say it is gaining momentum. Scaling up the use of hydrogen...