Polar engagement

Sorby works as a guide and historian of Antarctica, having visited the continent more than 100 times^[1][8] and also having skied across the Greenland icecap, across King George Island, Antarctica, and skied to the South Pole.^[9] Her journey to the South Pole, which she reached on 14 January 1993, was as a member of the first women's team (under the leadership of Ann Bancroft) to do so.^{[1][5][7][8][10][11]}

Sorby co-founded Hearts in the Ice, a social media project aimed at engagement on climate change and together with Norwegian Hilde Fålun Strøm, is the first woman to over-winter in Svalbard without men.^[1][2] Focusing on the smallest possible carbon footprint while overwintering on Svalbard, Sorby and Strøm intend to pioneer the use of an electric snowmobile, and keep packaging of supplies to a minimum.^[2] Their overwintering period, running from August 2019 to May 2020, will be spent at 78°N in a 20 m² cabin called Bamsebu and their experience broadcast via social media.^[12]