REBROADCAST: Nature PastCast - May 1985

Jonathan Shanklin was sifting through a backlog of data when he made the startling discovery of a hole in the ozone layer above Antarctica. In this podcast, he and others recall events in the mid-1980s and discuss how the 'ozone hole' became the poster child for environmentalism. Originally aired 17/05/2013. For information regarding your data privacy, visit