In the latest episode of Rare Earth, a Radio 4 series in which the journalist Tom Heap and the physicist Helen Czerski tackle stories about our environment and wildlife, contributors include the writer Cal Flyn, who has spent the past few years travelling the world in search of wilderness for her new book The Savage Landscape, and the travel writer and broadcaster Antonia Bolingbroke-Kent, who escapes the studio to visit the largest rewilding project in Wales. 

In an interview in the books pages of The Observer yesterday with Ellen Peirson-Hagger, the BBC journalist Lyse Doucet talked about her prize-winning debut, The Finest Hotel in Kabul, and the future of Afghanistan under the Taliban.