[coloradan]

Um, what? What is “gray hydrogen” and “white hydrogen”?

[Red Badger]

“This form of hydrogen [white] is naturally occurring and does not require industrial production, unlike green hydrogen, which is made using renewable energy, or gray hydrogen, which is derived from fossil fuels.”.......................

[P.O.E.]

Gray Hydrogen escaped from the Mines of Moria and was transformed into White Hydrogen