- Toilet that produces biological charcoal, minerals, and clean water
- Turning the toilet into an electricity generator for local use
- A urine-diverting toilet that recovers clean water on site.
This competition is used to help found a greener way of disposing of human waste. This will help the billions of people who use toilets every day. I am down for an upgrade on our current toilet technology; it is about time anyways don't you think? What would your perfect john consist of, green or not?
More information can be found on the Gates Foundation fact sheet: [Reinvent the Toilet Challenge]