Hydrogen is a colorless gas. But if you’ve done any reading about the future of energy, you’ve likely seen it identified by a number of different colors—ranging from turquoise and aqua to green, ...

ANAHEIM, Calif. — Hydrogen is typically categorized by colors meant to indicate its emissions, but speakers at ACT Expo said getting too hung up on color could hinder the production and adoption of ...

Twelve colors and counting. The terminology associated with hydrogen—specifically, the use of color descriptors such as green, blue and gray—has become widespread in discussions about renewable energy ...

Scientists have found a new way to make clean hydrogen from water using liquid metal and light, and it works with both ...