[mort]

Wells! Wells are being bored all over. Natural Hydrogen seems to be a coming thing.
Before today I hadn't heard that there could be exploitable amounts of hydrogen underground. This week's issue of Science magazine (vol. 379 17 February 2023) has an article: "Hidden Hydrogen" which is a long story about all the people and places that are being examined for natural hydrogen. There is a village in Mali now powered by hydrogen gas from a 100 meter deep well (via a internal combustion engine driving a generator for electricity). There is an exploratory well near Geneva, Nebraska. One planned for the Pyrenees for next year. Lots of exploration in south Australia. The first scientific discussion of natural hydrogen is from Dmitri Mendeleev. In 1888 he reported hydrogen seeping in a coal mine in Ukraine.
Hydrogen seeps are believed to be the cause of geological depressions called "Fairy Circles" and there are fairy circles in North Carolina, Brazil, Russia, and Mali.

Using a simple way to estimate how much hydrogen there could be, based on a method developed by the oil industry, researchers at the USGS say the model comes up with a range centered on a trillion tons of H2.

It is believed that most of the hydrogen comes from serpentinization, which is an on-going process. It could be stimulated by pumping water into iron-rich rocks.

Hydrogen mine promoters are pushing "this is the next energy boom" bigger than oil or fracking or anything.
I think it might come together about the time Fusion power generators need more hydrogen. Some time between 20 years and never.
-mort