What you need to know about desalination, a growing source of drinking water as scarcity deepens
Summary
Desalination is a process that removes salt from seawater to produce freshwater. As climate change causes more droughts and changes in rainfall, many areas are using desalination to get safe drinking water.Key Facts
- Desalination turns seawater into freshwater by removing salt.
- It is used mainly in regions without enough rain, rivers, or groundwater.
- The process is important in areas experiencing water shortages.
- Desalination serves millions of people around the world, including in the Middle East and the U.S.
- Modern desalination often uses a method called reverse osmosis.
- Reverse osmosis involves forcing seawater through a special filter that separates salt and impurities from water.
- The process results in freshwater and a leftover salty liquid called brine.
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