主播大秀

"Potty parity" is no laughing matter for women in India and throughout the world, for whom open defecation is a threat to their health and their personal safety.

With World Toilet Day coming up on Sunday 19 November, presenter Ed Butler speaks to its brainchild Jack Sim, the founder of the World Toilet Organization, who has made it his life mission to give everyone access to a lavatory.

The lack of facilities for women is a particularly acute issue in India. Yogita Limaye reports from Mumbai on innovative solutions to the country's latrine shortage, while activists Supriya Jaan of the Right to Pee campaign and "water mother" Amla Ruia discuss the huge problems still facing their nation.

(Picture: Ladies' toilet sign in India; Credit: Schwaabe/Getty Images)