3 ms·

I recently learned there are natural hydrogen deposits: https://en.wikipedia.org/wiki/Natural_hydrogen https://en.wikipedia.org/wiki/Natural_hydrogen

• analog31 2y ago
  This isn't shocking, given that there's hydrogen in the atmosphere.
  • coryrc 2y ago
    I naïvely would have expected that's entirely from chemical reactions like lightning strikes.
    • analog31 2y ago
      Ah good point, I hadn't thought about reactions above ground.