
Water security, global water scarcity, freshwater availability, water stress, sustainable water allocation, integrated water resources management, water conservation, demand-side management, water efficiency, watershed management, river basin planning, transboundary water resources, freshwater ecosystem protection, sustainable water supply, water governance, equitable water distribution, water footprint, virtual water, groundwater–surface water interactions, drought preparedness, resource optimization, water infrastructure planning, and long-term strategies for resilient and sustainable water resources.