By rprice , 14 August 2012 Bill Gates's Foundation Funding Global Toilet Solutions - Ina Fried - News - AllThingsD Link http://allthingsd.com/20120814/why-bill-gates-is-searching-for-a-better-toilet/ The criteria set out by the Gates Foundation are pretty strict. The toilets have to be hygenic and sustainable, discharge no pollutants, generate energy, recover nutrients and only need a tiny amount of water. research bill_gates shrinkyours