Hydraulic fracturing, or fracking, has long been a controversial topic. For one side, the drilling method has prompted an economic boom. It’s created jobs, increased revenues and even helped lower the cost of energy. But on the other hand, environmentalists argue that fracking has a slew of issues that will only harm the environment and the health of humans. Many argue that chemical-laden fracking wastewater seeps into water tables, causing people to grow ill. Others point to the hazards of the methane gas released in the process or the earthquakes attributed to fracking. And now, it appears that sand is the latest target in the battlefield surrounding the fracking industry.