U.S. soldiers participate in a training exercise on March 7, 2011, in Pocheon, South Korea.
Credit: Chung Sung-Jun/Getty Images
Not only are bullets a physical hazard, but they're an environmental hazard, too. At US Armytraining facilities around the world, hundreds of thousands of spent shells litter proving grounds. Because there is no efficient way to clean up the shells, they're left where they fall.
But that's a problem. The shells, which contain metal and other chemicals, can rust and pollute soils and groundwater.
The DoD wants to do something about it, though. They're soliciting proposals for biodegradable bullets "loaded with specialized seeds to grow environmentally beneficial plants that eliminate ammunition debris and contaminants." https://www.livescience.com/57461-army-wants-biodegradable-bullets.html
