How can dusty roads provide water? The answer is: harvest and store the rainwater when it finally comes. A rainfall of 30 millimeters falling on 1 kilometer of road produces about 100,000 litres of water.
Rainwater running off roads can be used for profitable ventures instead of letting it cause damage (runoff, gullies). This video gives some examples of harvesting rainwater from roads
More info: www.waterforaridland.com
Produced by: ASAL consultants, Erik Nissen-Petersen