Urban Toilets in Haiti

Guest: Sebastien Tilmans has a PhD in Environmental Engineering at Stanford University and is the Co-Founder of re.source.  Two-and-a-half billion people in this world lack access to adequate sanitation and about 750 million of them live in cities. The unregulated disposal of human waste creates immense health problems in populated areas. So immense, that a few years ago, the Bill and Melinda Gates Foundation launched an entire challenge dedicating to reinventing the toilet and have awarded millions of dollars in grants to people taking on the challenge.