Researchers have found a way to turn fog into an unlimited renewable water source that doesn't even require electricity.

By placing the collectors above town — where the altitude is ideal for exploiting the region’s predictable band of fog — water would flow downhill in pipelines by the power of gravity.

Now, local researchers have assessed if "fog harvesting," a method where fog water is collected and saved, is a feasible way to provide the residents of informal settlements with much needed water.

Houston drivers on Monday morning found themselves wrapped in that mysterious grayness we know as fog, which the National Oceanic and Atmospheric Association defines as water droplets suspended ...