With Antarctica sea ice levels reaching record lows over the last four consecutive years, Alok Jha talks to leading glaciologist Professor Martin Siegert about glaciology: the study of ice in all its forms - from the Antarctic ice sheets and glaciers to the icy bodies of our solar system – why ice matters, and the crucial role it plays in our climate.

Martin is Deputy Vice-Chancellor (Cornwall) at the University of Exeter. Previously, he was a Professor at Imperial College London and Director of the Grantham Institute and before that he was Head of the School of GeoSciences at the University of Edinburgh. He has published over 250 papers and 8 books on the geophysical exploration of Antarctica. In 2013 he was awarded the Martha T Muse Prize in Antarctic Science and Policy, and in 2007 he was elected as a Fellow of the Royal Society of Edinburgh. 

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Season 5 of A Voyage to Antarctica is made possible by support from HX Hurtigruten Expeditions.

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