Covering California’s canal system with solar panels will save on valuable water resources.
A Tunisian startup, meanwhile, has developed a solar-powered device that turns wet air into water.
In high-humidity areas where clean drinking water is scarce, the firm’s metre-high machine could produce up to 30 litres per day.
First, air is sucked into the machine’s head before being filtered and cooled. The resulting water dew is filtered again, then mineralised and stored in a tank.
The technology could reduce plastic bottle use and provide vital access to water. A number of pre-orders have been made already.