The first benefit of recycling is environmental ones. When people recycle, they contribute to several improvement made for environment. For example, recycling reduces the needs for mining and deaths and injuries caused by world's most deadly occupation are minimized. Apart from that, when one ton of steel is recycled, 2.500 pounds of iron ore, 1.400 pounds of coal and 120 pounds limestone are conserved. In addition, recycling preserves natural resources, such as timber, water, and minerals. And that is one of the most important environmental facts of recycling: Every ton of paper that is recycled saves 17 trees. It is obvious that recycling contributes to preservation of natural resources greatly.