Photos: Airplane recycling taking off

Each ton of scrap steel used saves 2,500 pounds of iron ore, 1,400 pounds of coal, and 120 pounds of limestone, according to the Steel Recycling Institute. And 70 million tons of steel were recycled in the United States last year

This image shows a bale of steel scrap on its way to be mixed in a furnace with coal, iron ore, and limestone to make fresh steel goods.