The author acknowledges the global water crisis and the need for proper management of fresh water resources. They express a sense of hope that technology will eventually solve the problem, as there is a lot of water in the world and we can make fresh water from salt water. However, they recognize that this perspective is naive and that political mismanagement is a major factor contributing to water scarcity. The author introduces an incremental advance in desalination technology developed by MIT engineers, which uses passive solar power to desalinate water. The system is portable, efficient, and cost-effective, offering a potential solution to water insecurity if mass-produced and scaled up.
https://theness.com/neurologicablog/index.php/passive-solar-water-desalination/