Does it take 10,000 litres of water to make a pair of jeans?

Various claims have been made about how much water is used in the production of a pair of jeans, that cornerstone of casual clothing.

With growing worries over the environmental impact of denim production, More or Less decided to investigate - with the help of journalist and researcher Elizabeth L. Cline who has written extensively on sustainability and the fashion industry.

Presenter: Tim Harford
Producers: Lizzy McNeill, Jon Bithrey
Programme Coordinator: Brenda Brown
Sound engineer: Neil Churchill
Editor: Richard Vadon

(A worker sews blue jeans in a textile company in Xintang, China, dubbed the 'denim jeans capital of the world'. Photo: Lucas Schifres/Getty images)