The threat eating away at museum treasures

Submerge them in drawers filled with Argon or Xenon gas when filing them away. This would also help to fireproof the artifacts.

Idea: For long-term storage & preservation of rare "treasures" (whether they be museums pieces, library books, national archive documents, or whoever), invest in oxygen-depleted facilities. At low-enough O2, nothing aerobic - be it bacteria, mold, bug, rodent, or whatever - can grow. Most can't even live. Gradual oxidation damage (paper turning yellow then brown, etc.) ceases. And disastrous fires can't happen.

And yet, the curators, when told to give the stolen museum pieces back, always retort, "But we take care of these items in ways the savages in the countries where we stole them from would be incapable of."