3 habitable ice moon traits

Hail is paradoxically good. It is dangerous to infrastructures and persons in the open. Where it forms sheet after sheet of deposits on a surface, it segregates toxins from the new surface.
Ice Moons or ice moon startered planets will outgas at around 0.7g at Earth temperature. In less than a million yrs. Finally, as methane is on Triton, I'd consider any methane industrial novelties as innovations where burning it faster isn't the result. In the past I lobbied for Amminex and would now switch to methane economy adsorption for machine-learning.