Sand Crisis Resolution Act
Sand Crisis Resolution Act (SCRA) are agreements made by the unUŊ members to resolve the sand crisis.
Agreements
Limitations on sand usage in builds and decorations
A building may not be built entirely or majorly with sand or sand-derived materials. Glass are permitted but must be from trading with villagers.
Establishment of the unUŊ Sand Reserve

A member may withdrawn sand to use in concrete making, or other usages except from building, though only 2 stacks per real-life day. And sandstones are to be mined instead of crafted with sands.