• Sewer_King@lemmy.world
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      5 months ago

      I’d be worried about the now excess co2 levels disrupting the normal saturation levels in the groundwater.

    • CrimeDad@lemmy.crimedad.workOP
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      5 months ago

      This worst case scenario is probably the same as with any reservoir of natural gas (a massive leak and explosion), which is all the more reason to convert it to hydrogen and sequester the weaker, non-flammable GHG byproduct in situ.

    • Wispy2891@lemmy.world
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      5 months ago

      I imagine that suddenly all the co2 stored as gas underground could suddenly come out and being odorless, kills the whole neighboring town

      • tal@lemmy.today
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        5 months ago

        I mean, all that methane coming out would probably be at least as bad, and the cavity had previously been filled with methane.

        It’ll be a cavern deep under a lot of rock. If it can contain methane for zillions of years, I imagine that it can contain carbon dioxide.