Biogas from human waste has the potential to generate electricity for millions of homes while improving health and protecting the environment, a UN University institute said on Tuesday.
The biogas potentially available from all the human waste in the world would be the equivalent of up to 9.5 billion dollars worth of natural gas a year.
This volume of waste could produce electricity for as many as 138 million homes, the U.N. Institute for Water, Environment and Health (UNU-INWEH) said in a study.
In low-income countries, the use of biogas – generated by bacteria breaking down the waste – could finance development, it said.
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