A peer-reviewed study in Nature Communications reveals that Bangkok and other densely populated coastal zones face relative sea-level rise at ~6mm/year—nearly 3x the global average—primarily due to land subsidence from groundwater extraction and urban development. The research shows groundwater management directly reduces subsidence risk (citing Tokyo and Texas examples), offering SMEs and utilities actionable insight: water resource policies and alternative supply strategies are critical infrastructure investments for coastal businesses facing compounding flood exposure.