A sign proclaiming Earth Day is placed on the Niagara Falls Air Reserve Station, N.Y., April 22, 2013. NFARS contributes on Earth Day and throughout the year by recycling many materials such as paper, cardboard, scrap metal, toner cartridges, computers, monitors, printers, other electronic waste, appliances, pallets, wood scraps, plastic wrap, plastic and glass beverage containers, batteries, used oil and filters, paint, light bulbs, ballasts and other recyclable construction and demolition debris. (U.S. Air Force photo by Tech. Sgt. Joseph McKee)