Annually, in the U.S. alone, around 3 million tons of polystyrene is produced, which is a lot considering it’s 95% air. It’s a popular choice because it has enabled packaging to take on very precise forms and provides excellent packing safety for fragile electronics on the move, for instance—while costing pennies to manufacture.One of its worst qualities is that most recycling facilities don’t have the capability to process it.

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