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When you throw away rubbish, it can create an environmental problem \\u2013 or a business opportunity.
Your old newspapers, tin cans and plastic bottles are someone else\\u2019s valuable harvest. Just like gold, steel, sugar or coffee, rubbish is traded all over the world as a commodity. If it can be recycled, it\\u2019s worth money.
Until recently, countries vied to recycle the waste of others. But now one of the main players - China - says it doesn\\u2019t want foreign rubbish anymore. That has sent this multi-billion dollar industry into turmoil and is forcing it to invent new solutions. Ruth Alexander reports.
Producer: Tony Bonsignore
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