Lifelong environmentalist Annie Proulx brings passion, vitality and rigour to a history of our wetlands. Exploring their history alongside human interactions with these liminal places, the Pulitzer Prize-winning author of 'The Shipping News' and 'Brokeback Mountain' makes an elegant and compelling contribution to the debate around the environmental crisis.

19th century America flourishes at the expense of the country's great swathes of swampland.

Written by Annie Proulx Read by Lorelei King Abridged by Patricia Cumper Producer: Eilidh McCreadie