Reply #12: Actually, water probably isn't the best solution. [View All]

[caseymoz]

Water's too good a solvent, hence it leads to much more nuclear waste and dangerous radioactive puddles, along with releases into the ocean.

They should try to keep the buildings flooded with nitrogen and then try to cool with liquid sodium. Sodium is exothermically reactive with oxygen, but that likely won't be a problem if the building is filled with nitrogen first.

If that doesn't work, I'd try a chilled noble gas like helium or argon. Of course, those things are as expensive as hell, and you probably won't be able to get helium for medical uses as a result for a long while.

They have to think outside the box, now.