Is desalination is an inexpensive way to produce fresh water? Why desalination is bad? The removal of salt or other chemicals from something, such as seawater or soil. More generally, desalination refers to the removal of salts and minerals from a target substance, as in soil desalination , which is an issue for agriculture.
Ian James, azcentral, Ancient aqueducts in Oman imperiled by modern wells and climate change, Nov. Currently, desalination is largely limited to more affluent countries, especially those with ample fossil fuels and access to seawater (although brackish water inland can be desalinated , too).

The most common desalination methods employ reverse-osmosis in. Partial or complete removal of salts from a substance, as from seawater or brackish water, so that it is suitable for agricultural or household purposes but not necessarily for drinking. The island features a 5foot airstrip, underground wiring and a desalination facility. Improvements in utility services, road networks, sewage treatment, and water desalination have resulted in a better quality of life.
Humans cannot drink saline water. But, saline water can be made into freshwater, which is the purpose of this portable, inflatable solar still (it even wraps up into a tiny package).