Could saving the planet start with a single flush? That may be a bit much to ask of a humble toilet, but these days, high-efficiency toilets are becoming the norm. Mandated by federal law since the ...

This is evo-loo-tion at work. Thought the “Teflon john” was revolutionary? Spanish company Kekatron Desarrollo SL has invented a self-cleaning toilet that could make flushing obsolete. In a recent ...

John Crimaldi is a professor of civil, environmental and architectural engineering at the University of Colorado, Boulder. Every time you flush a toilet, it releases plumes of tiny water droplets into ...