Plastic
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Plastic input to oceans quantified

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.

Roland Geyer, from the University of California at Santa Barbara, discussed the issues with our science correspondent Jonathan Amos.

  • 13 Feb 2015