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A cheap system to recycle human waste into biogas and fertiliser may allow 2.6 billion people in the world access to toilets and reduce global warming. Bindeshwar Pathak, founder of the Sulabh International Social Service Organisation, said his group plans to push the system at the seventh annual World Toilet Summit, to be held in New Delhi at the end of October. He said India's contribution would be a toilet system that organically breaks down faeces into trapped biogas that can be burned to provide cooking fuel and electricity, and convert urine into fertiliser.
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