English: Video published by the Bill & Melinda Gates Foundation in course of the "reinvent the toilet challenge".
There has been progress since this video was made in 2012, but 2.5 billion people worldwide still don't have a safe place to poop. We need a toilet revolution--new ideas to help reduce disease and find new ways to turn crap into valuable stuff, like fuel, fertilizer, and fresh water. Learn more: http://www.gatesfoundation.org - See also https://www.youtube.com/watch?v=fdwvuTrycYU
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