Zoning in water management involves designating areas for protection against development to ensure water quality. It focuses on allowing aquifers to recharge and preserving water purity, commonly used in dry US regions.

Some new technologies in water management include nanotechnology infiltration, membrane chemistry, seawater desalination, smart monitoring, intelligent irrigation, wastewater processing, and mobile recycling facilities. These methods can help in water filtration, purification, leak detection, precision irrigation, and transforming wastewater into a resource for energy generation and drinking water.

Pricing influences water management by affecting usage behavior. While direct payment for water can promote conservation, subsidies in farming areas may lead to overuse and resource depletion. Effective pricing policies are crucial for sustainable water management.

Common water-saving methods include using smaller-capacity baths, taking showers instead of baths, installing water-efficient showerheads and low-flow taps, turning off taps when not in use, and fixing dripping taps. Appliances like dishwashers and washing machines should be used only when full, on efficient water and energy settings.

WaterAid reports that approximately 748 million people lack access to safe water worldwide. This statistic represents about one in ten people globally, with notable improvements in India and China.

The concept of "wise use" under the Ramsar Convention refers to the sustainable utilization of wetlands for the benefit of mankind in a way that's compatible with the maintenance of the natural properties of the ecosystem. It's defined as the human use of a wetland so that it may yield the greatest continuous benefit to present generations while maintaining its potential to meet the needs and aspirations of future generations.

Climate change impacts wetlands via altered temperatures, sea-level rise, and precipitation changes. These affect water levels and wetland functions. Wetlands' adaptation depends on change magnitude and rate.

Louisiana's wetlands account for about 40% of the USA’s wetlands but 80% of the lost wetlands. They provide important storm protection from hurricanes and sea surges, serve as a nursery for the commercial seafood industry, and support varied biodiversity.

Egypt is concerned that the Grand Ethiopian Renaissance Dam could reduce the flow of the Nile, its primary freshwater source, possibly affecting water availability.

The Aswan High Dam is estimated to contribute about $500 million to the Egyptian economy each year.