Cow dung has been used for millenia as a fertilizer and fuel, specially in the Indian Subcontinent.
However, scientists are now coming to the view that along with animal excreta, Human excreta also holds a solution to a greener world.
Waste disposal plants across the World are already harvesting methane from sewage. Yes! Even in New Delhi India.
A lot of municipalities, like in New York have been treating this sewage water to make it fit for human consumption, and sending it back to consumers since a very long time.
All this reduces the dependence on precious ground water, which is depleting globally at an alarming rate. Not only this, it provides fuel and power for homes and businesses, and a bio-degradable fertilizer for growing our food.
So next time you use the expression S*it in a derogatory manner, think again.
