Snow gums on the front line of climate change, plus Susan Orlean's life in writing

Australia's unique alpine eucalypt is starting to die out. The High Country may never be the same again, a new book argues. And longstanding New Yorker magazine writer Susan Orlean, author of 'The Orchid Thief' and 'The Library Book', on her fascination with the stories of people who are not famous or powerful.

Guests:

Ant Sharwood and Anna Langford, co-authors of 'The last snow gum' (Hachette)

Susan Orlean, on a speaking tour of Australia. Her latest book is 'Joyride: a memoir'