Blaser was speaking at the launch of a new solar “Water from air” device by Zero Mass Water, a US company based in Arizona.

Zero Mass Water’s SOURCE Hydropanels use sunlight and air to make safe, pure drinking water.

Powered entirely by solar, SOURCE extracts water vapour from the air and converts it into liquid water similar to distilled water.

According to Zero Mass Water, SOURCE utilises an ultra-absorbent material that collects water from the air around it in even arid conditions.

An average of 3 to 5 litres of water is produced per panel per day.

“About half a trillion litres of bottled water are sold each year at a huge cost and use of plastic.”

“We still live in the Roman era in terms of the way we supply water. The question for me was whether we could leapfrog the process of water supply.”