Groundwater is the primary source of freshwater for human use, accounting for approximately 30% of the world's freshwater resources.

Agriculture is the leading contributor to water pollution, accounting for approximately 70% of global water withdrawals and the release of harmful chemicals and nutrients into water bodies.

Reverse osmosis is the process of removing salt and other impurities from seawater to make it drinkable. It involves applying pressure to force water molecules through a semipermeable membrane, leaving behind the salt and impurities.

Rainwater harvesting is the process of collecting and storing rainwater for later use. It is a sustainable way to reduce reliance on traditional water sources and conserve water during dry periods.

Graywater reuse is the process of using treated wastewater from sinks, showers, and washing machines for irrigation or other non-potable purposes, reducing the demand for freshwater.

Drip irrigation is a water-efficient irrigation method that delivers water directly to the roots of plants, reducing evaporation and runoff.

Wetland mitigation is the process of restoring, creating, or enhancing wetlands to compensate for the loss or degradation of existing wetlands.

Xeriscaping is a landscaping technique that aims to reduce water usage by using drought-tolerant plants and efficient irrigation systems.

Water management is the process of planning, developing, and implementing strategies to ensure the sustainable use of water resources.

Dual-flush toilets allow users to choose between a full flush and a half flush, reducing water usage per flush.

Water treatment is the process of removing harmful contaminants from water to make it safe for drinking, typically involving a combination of physical, chemical, and biological processes.

Water-efficient washing machines use less water per load, reducing water consumption.

River engineering involves managing and controlling the flow of water in a river or stream to prevent flooding, improve navigation, and protect ecosystems.

Taking shorter showers reduces water usage.

Rainwater harvesting is the process of capturing and storing rainwater for later use, typically for irrigation or other non-potable purposes.