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Ocean's plastic waste problem calculated

Scientists say about eight million tonnes of plastic waste find their way into the world's oceans each year.

This amount of debris is, they say, like covering an area 34 times the size of New York's Manhattan Island to ankle depth.

Study author Jenna Jambeck, from the University of Georgia, discussed the issues on the BBC's Science In Action programme with Jack Stewart.

  • 12 Feb 2015