Finding ways to augment supplies of fresh drinking water have been around for years. These ideas vary from basic “low tech” ones like a Yemenite funnel water cone to extract fresh water from saltwater to using water created by aircon units.
Purifying sewage systems to create safe, drinkable fresh water are also being tried; and have received visible support by personalities such as high tech mogul Bill Gates, who demonstrated this by drinking purified toilet water.
Read More