And these numbers are only expected to rise as climate change takes its toll. But what many of these regions lack in traditional water sources, they make up for in fog, like the Namib Desert.

The Namib Desert, one of the planet’s oldest, enjoys bright blue skies nearly every day of the year. The dry, semi-arid climate ensures little rainfall and makes Namibia a paradise for ...

More work is also needed to understand the shifts in climate that allowed the rivers to flow into the Namib. This Southern Hemisphere, west coast desert has a very different setting to north Africa ...