What a waste: Turning poo into plastic

Would you drink from water bottle made from raw sewage?
That rather unappetising image may soon be a reality, thanks to the rise of bioplastics.
These biodegradable materials may soon offer a realistic – and cost effective – alternative to plastics derived from oil.
They are part of a movement to better utilise the ever increasing mountains of waste created by humans.
Saima Mohsin travels to Sacramento, California, to visit a company that is using some of the seven million tonnes of dry solid human waste produced in the US every year, to create useful products.
Opinion:
And to think of all the poo we have been wasting…
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