Satellites Spy On Sand Mining In The Mekong
Eos —
We need sand—and not just any sand. As rivers carry sediment, grains collide, creating craggy surfaces on the tiny rocks. Those rough surfaces translate into stability when river sand, gravel, and cement are combined to make concrete, the physical foundation of our modern world.
Though it’s the second-most sought-after resource next to water, sand is understudied and overused, Read More…