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Professor David Vaughan OBE was a leading expert on the effects of climate change on glaciers in the Antarctic
Last Word spoke to ÃÛÑ¿´«Ã½ Climate Editor Justin Rowlatt, Director of the British Antarctic Survey Professor Dame Jane Francis and to Head of Department of Geography and Environment at Northumbria University Professor Andrew Shepherd.
Photo: ÃÛÑ¿´«Ã½