The sinking of coastal cities due to groundwater depletion poses significant risks, including increased vulnerability to flooding and accelerated impacts of rising sea levels. Cities like Jakarta are sinking at rates of up to 10 cm per year, while Tianjin faces the possibility of 15% of its population being underwater by 2120 if the subsidence continues. This issue is not limited to Asia; similar problems are observed in cities across the globe, including New Zealand, the United States, and Iran.