According to an Oberlin College study, how many computer disks are thrown away every year?
Almost 4 million computer disks are thrown out on a daily basis, or 1.5 billion annually. According to the study, this is the equivalent of a stack of disks the same height as Chicago's Sears Tower being created every 21 seconds. But don't worry, they'll degrade in 500 years.
SOURCE: Interesting Facts About Recycling | Oberlin College Resource Conservation Team