5.Water management info

Describe human water cycle

Water capture → Management → Water use → Water disposal → Water recycling → Management

Examples of water treatment

• Filtration

• Disinfection - UV

• Flocculation - clumps of dirt form

• Quality testing - pH

• Desalination

Define water stress

The ability of a population to reliably access sufficient, safe and affordable water for domestic, economic and environmental needs.

Define physical water scarcity

The condition experienced when people lack reliable access to adequate, safe or affordable water, leading to negative impacts on health, livelihoods and development.

Define economic water scarcity

A situation where water is physically available but people cannot access it because of poverty, lack of infrastructure, or poor governance.

Define water insecurity

A temporary lack of water relative to demand, often caused by seasonal dry periods, droughts, or short‑term increases in use.

Define water efficiency

The process of using the minimum amount of water for a particular task reducing water waste

Methods of increasing water supply

• Portable water treatment - filters

• Fog harvesting

• Desalination

Methods of reducing water demand

• Increasing price of water

• Rationing

• Technology

• Publicity/education

Example of unsustainable management

• Overabstraction

• Saltwater intrusion

• Water conflicts

• Water pollution