The world is running out of sand

Black market for sand? Believe it or not, the world is actually running low on sand, according to Science Insider. Evidence suggests that sand is becoming increasingly scarce in many regions, prompting lucrative black markets to emerge as its value increases. “In Vietnam, the ministry of construction made an official declaration that by 2020, Vietnam may run out sand because the extraction rates exceed the resources of the country” (watch, runtime: 7:43).