Figure 2.

Change in glacier volume, ΔV, derived from mass balance measurements on 37 glaciers in five regions in the Northern Hemisphere in recent decades, and a global average. (a) All glaciers are in Queen Elizabeth Islands (Arctic Canada). (b) Peyto (Rockies, Alberta, Canada), Place (Coast Mountains, British Columbia, Canada), Blue (Olympics, Washington), South Cascade (North Cascades, Washington), Gulkana (Alaska Range, Alaska), Wolverine (Kenai, Alaska). (c) A. Broggerbreen and M. Lovenbreen (Svalbard, Norway), Storglaciären (Kebnekaise, Sweden), Ålfot-, Gråsu-, Hardanger-, Hellstugu-, Nigards-, and Storbreen (Norway). (d) Hintereis-, Kesselwand-, and Vernagtferner (Eastern Alps, Austria), Gr. Aletsch, Sonnblick, Gries, and Silvretta (Alps, Switzerland), Careser (Alps, Italy), St. Sorlin and Sarennes (Alps, France). (e) M. Aktru, Djankuat, and Kozelskiy (Russia) Abramov and Karabatkak (Kirghizstan), Igly and Tuyuksu (Kazakstan; Ürümqihe (China). (f) A global estimate showing cummulative volume change (red) and year-to-year fluctuations (purple).