One Researcher is Using Feces to Improve Sanitation Worldwide In Haiti, the number one cause of death in children under five, is diarrhea. Waterless toilets and recycled poop may provide the answers.November 21, 2016 by The Editors Leave a Comment Most of us don’t realize it because we are privileged in this first-world nation, but having a place to poop may be a matter of life or death. __ Photo/video credit: Digg/History.com