About a quarter of scrap tires are left in landfills each year , according to the EPA . One company is grounding old tires up into fine particles for use in other products . The company can grind out up to 100 million pieces of tires per year .
About a quarter of scrap tires are left in landfills each year , according to the EPA . One company is grounding old tires up into fine particles for use in other products . The plant can grind out up to 100 million pounds of powder per year .