Martin Sessions, as a 24 year old Royal Navy Engineer Officer, spent five months monitoring a west flowing glacier of Chile’s North Patagonian Icefield, one of the many tasks undertaken by the five month 1972/73 British Chilean Patagonian expedition. Returning on a reconnaissance in 2006, he was instantly struck by the dramatic changes occurring to the region’s glaciers.

In 2007, 2011 and 2017, he led expeditions to observe the significant changes and measure the rapid surface lowering of the 1972/73 study glacier.

Aware that the 100 year anniversary of Professor Otto Nordenskjöld’s Swedish South America expedition was approaching, Martin searched worldwide for stories, information and photographs to document how the region changed before and since the 1920/21 Swedish expedition.