Sunday Feature: Freeze - Thaw

As part of Radio 3's Northern Lights season, Hayden Lorimer discusses ice with poets, musicians, explorers, doctors and physicists. With location recordings from a petrol station forecourt, the largest ice house in Scotland and the ice fields of Tromso, north of the Arctic Circle. Including contributions from poets Lavinia Greenlaw, Jo Shapcott, Kathleen Jamie, Fiona Sampson, Jen Hadfield, Frances Leviston, Paul Farley and Nick Drake, writers Gavin Francis, Joanna Kavenna, musician Karen Powers, painter Kurt Jackson and scientist Stephen Harrison