According to the National Safety Council it is estimated that 63 million computers will become obsolete in 2005. It is also estimated that 75% of these obsolete computers are stored, and by 2007, these stored computers will amount to about 500 million computers needing to be disposed. Computers are made with a variety of elements, like plastics, glass, steel, gold, lead, mercury, cadmium and fire retardants that can be recaptured through recycling and used again. If thrown away, these computers can release toxins to the environment, potentially polluting the groundwater we drink and the air that we breathe.