Counting raindrops in Thar

Zahra Ali, writing for the Express Tribune (and International Herald Tribune), writes on water shortages for people living in the Thar Desert, which bridges India and Pakistan. Wells are their only source of water and the water table is declining by 11% each year. Health problems are increasing since most of the water available is saline. Rainwater harvesting with geomembrane containment is part of a new answer. Engro Polymer and Chemical Limited (EPCL) is providing the materials.