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Water conservation is the sustainable management of fresh water to meet current and future human demand and protect the hydrosphere. It involves various policies, strategies and activities to reduce water loss, use and waste, avoid water quality damage, and improve water management practices.
World Water Day is an annual UN observance day on 22 March that highlights the importance of fresh water. The theme for 2021 was "Valuing Water" and the public campaign invited people to join a global conversation on social media to "tell us your stories, thoughts and feelings about water".
SDG 6 aims to ensure clean water and sanitation for all by 2030. It has eight targets and 11 indicators to measure progress, covering water supply, sanitation, hygiene, water quality, water efficiency, and water ecosystems.
Water efficiency is the practice of reducing water consumption by measuring and proportioning the amount of water required for a particular purpose. Learn about the global water scarcity problem, the organizations and policies that support water efficiency, and the solutions for residential, manufacturing, utilities and data centers.
Water scarcity is the lack of fresh water resources to meet the standard water demand. It can be physical (due to low availability) or economic (due to low accessibility or affordability). Learn about the global water stress, the symptoms of water scarcity and the ways to reduce it.
Learn about the natural and artificial sources of water that are potentially useful for humans, such as surface water, groundwater, glaciers, reclaimed water and desalinated water. Explore the challenges and threats facing water resources, such as scarcity, pollution, conflict and climate change.
Learn what rainwater harvesting is, how it works, and why it is important for water conservation and sustainability. Explore the different uses, benefits, and challenges of rainwater harvesting systems in various contexts and regions.
Water security is the reliable availability of water for health, livelihoods and production, with acceptable risks of too much or too little water. Learn about the different aspects, factors and threats of water security, and how it relates to WASH and IWRM.