Gates said U.S. billionaire philanthropist Bill Gates unveiled on Tuesday in Beijing a futuristic toilet that doesn’t need water or sewers and uses chemicals to turn human waste into fertilizer.

Image caption, This futuristic toilet comes complete with a control panel for the user. As for the future, it’s widely acknowledged that Japan is a key player in the toilet technology game.

Researchers at Cranfield University hope to put an end to that with the waterless Nano Membrane Toilet. The design has so much potential to change lives that it's been backed by the Bill and ...