Ten famous glaciers across Patagonia, the Alps, the Rockies, New Zealand, the Karakoram, the Himalayas, Iceland and Norway. Historical photographs of Fox (2008), Khumbu (1973) and Briksdalsbreen (2005) do not show their present-day boundaries. Perito Moreno: Justraveling.com; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Perito_Moreno_Glacier_Front.jpg; resized and fitted to portrait frame; derived image retains the source license. Aletsch: MacHonest; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Aletsch-Gletscher.jpg; resized and fitted to portrait frame; derived image retains the source license. Athabasca: Carlos Delgado; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Athabasca_Glacier.jpg; resized and fitted to portrait frame; derived image retains the source license. Mer de Glace: Christian David; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Mer_de_Glace_from_the_Grotte_de_Glace_path%2C_Chamonix%2C_Haute-Savoie.jpg; resized and fitted to portrait frame; derived image retains the source license. Fox Glacier: Karora; Public domain (copyright holder dedication); https://commons.wikimedia.org/wiki/File:Fox_Glacier_meets_the_rainforest.jpg; https://commons.wikimedia.org/wiki/File:Fox_Glacier_meets_the_rainforest.jpg; resized and fitted to portrait frame; derived image retains the source license. Franz Josef Glacier: Jörg Hempel; CC BY-SA 3.0 de; https://creativecommons.org/licenses/by-sa/3.0/de/; https://commons.wikimedia.org/wiki/File:Franz_josef_Glacier_LC0250.jpg; resized and fitted to portrait frame; derived image retains the source license. Baltoro: Guilhem Vellut from Paris; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0/; https://commons.wikimedia.org/wiki/File:Baltoro_glacier_from_air.jpg; resized and fitted to portrait frame; derived image retains the source license. Khumbu: Dexter Perkins; CC0 1.0; https://creativecommons.org/publicdomain/zero/1.0/; https://commons.wikimedia.org/wiki/File:Khumbu_Glacier_%28GeoDIL_number_-_835%29.jpg; resized and fitted to portrait frame; derived image retains the source license. Svinafellsjokull: Bromr; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Sv%C3%ADnafellsj%C3%B6kull.JPG; resized and fitted to portrait frame; derived image retains the source license. Briksdalsbreen: sgm; Public domain (copyright holder dedication); https://commons.wikimedia.org/wiki/File:Briksdalsbreen.jpg; https://commons.wikimedia.org/wiki/File:Briksdalsbreen.jpg; resized and fitted to portrait frame; derived image retains the source license.