Poop Guy: A dad who is revolutionizing sanitation in Pune, IndiaRion NakayaMarch 25, 2014June 23, 2023
How to make paper out of elephant poo at Thailand’s Elephant Poo Poo Paper ParkRion NakayaMay 1, 2014November 6, 2023
Turn human waste into drinking water – Janicki OmniprocessorRion NakayaJanuary 8, 2015October 12, 2021