Every year in North America, nearly 69 percent of steel is recycled more than the combined paper, plastic and glass. Steel in its purest form is nearly 1000 times stronger than iron, and without loss of force can be recycled. Steel is the primary commodity that is used in the supply of solar, hydro and wind energy renewables.
The steel industry has to compete in an international market. The Swedish steel companies are worldwide leaders with their advanced steels in many different market niches, but competition is still high.
Many effects on the environment are associated with steel manufacturing, including the emissions of air (CO, SOx, NOx, PM2), wastewater, hazardous waste and solid waste. Coking(I think this is the word here) and iron-making are the main environmental consequences of industrialized steel mills.