Toilet Summit Tackles Issue of 'Potty Parity' for Women

The World Toilet Summit began in Macau today, as UN agencies, civil-society groups and the World Toilet Organization discuss how to provide sanitation for the 2.5 billion who still lack access to a clean lavatory, LiveScience reports. The summit will also address the issue of “potty parity”—the ratio of female to male facilities in public restrooms—as a key initiative in its three-day agenda. (More public restrooms stories.)