Eli5 why are so few plastics recyclable? Why cant you just melt it down and reuse it like glass?
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Many materials can’t just be melted down the way glass and metals can. Take wood for example, or cotton. However, this is not what is responsible for so mnay plastics not getting recycled. It’s not that plastics CAN’T be recycled, it’s that it’s too expensive to do so. Sadly it’s purely a matter of matter of cost, and that virgin (new) plastic is so cheap it’s not worth recycling.
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