Medium on 30th September carried an article saying that sand is also an incredibly rare and precious resource, but the world is running out of sand. It is a crucial material in everything from cellphones to high-rises, and the resource is being used up faster than it can replenish itself, sparking environmental concerns and community conflicts – some are even willing to kill for it. The article points out that sand is not as plentiful as you would think – sand in a desert is useless as a construction material. The preferred type is the kind found in a river bed, sea, or beach. Sand also regenerates slowly. It takes thousands upon thousands of years for rock and sediment to break down into the usable grains we all rely on. The article talks about “sand mafias”, groups of criminals that illegally dredge sand from areas where extraction is prohibited, with all environmental protocols ignored. This problem is particularly rampant in India.