You would think that if there were oodles of hydrogen, we would have come across it before now.
Even if it existed on any meaningful scale - to the extent that it exists, it is almost certainly generated by the geological steam reformation of fossil fuels - it would fail the sustainability test.
We've just passed through 50 years of wishful thinking, hype, fantasy, and handwaving.
For the week beginning 11/05/23 the concentration of the dangerous fossil fuel waste carbon dioxide in the planetary atmosphere was 419.28 ppm. In June of 1983, the month that the International Journal of Hydrogen Energy began publishing, a little over 40 years ago, the concentration in the week beginning June 12, 1983, that same concentration was 345.72 ppm. That's a difference of almost 74 ppm in just 40 years.
How long are we supposed to wait around to find out if there's so much geological hydrogen that it will matter?
You know what, the planet burst into flames while we all waited for magic to happen. It isn't going to happen. We need to get serious and not grasp insipidly at straws.
I have no use for more wishful thinking.