Environment & Energy

To know that you have Hydrogen in a mix of gases, you would need to intentionally test for it's presence.

The article explains how the recent find contains only a percentage of Hydrogen in the total gases mined.

But are you saying that Hydrogen doesn't naturally exist?

Edit to add:

We've known Hydrogen was being naturally produced underground for decades at least, but it has only recently been discovered that in certain geologic conditions, it can pool and collect, so we are only now discovering those collection pools or "reservoirs'.