BYU runs a comprehensive and efficient recycling and waste reduction program. We recycle everyday items such as office paper, newspaper, cardboard, plastic bottles, and aluminum cans, as well as industrial scrap material such as steel, insulated wire, concrete, and asphalt. BYU safely collects and recycles potential pollutants including used oil and grease, batteries, refrigerants, computer components, fluorescent lights, and chemical waste. From 2004 to 2011 BYU reduced overall waste by almost 800 tons, a 16% decrease. Each year BYU recycles approximately 1,700 tons of material and composts over 2,000 tons of green waste resulting in a waste recovery rate that typically exceeds 50%. This saves the university tens of thousands of dollars in disposal costs while also generating revenue from the sale of recycled commodities.