Morning dew. Image: Unsplash A new technology, harvesting airborne potable water from the air using salts and sunlight, is set to offer new hope to many communities desperate for water to drink and to grow their crops. An existing technology, which collects water from mist and clouds in mountain or coastal regions, is now established as a useful source of water in many countries. But where there is no fog it can achieve little. The new technology, harvesting water vapour from the air with the use of abundant salts and virtually unlimited sunlight, has now become a possibility, meaning even places without fog are not condemned to continued thirst. Using sheets of various materials that harvest vapour from fog and allow the water to drip into collectors for later use already sustains many dry region communities, and a Canadian charity, Fogquest , works to help people in countries able to benefit. Countries using these established fog collectors include Chile, Peru, Guatemala, Namibia, Eritrea, Oman and Nepal. In California, where coastal fog is normal even in the driest seasons because of the closeness of the sea to the dry coast, much of the vegetation could not survive without harvesting fog. […]


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