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  • Pasterze Glacier, Hohe Taueren National Park, Austria, receding glacier in the Alps. Pasterze Glacier, Hohe Taueren National Park, Austria, receding glacier in the Alps.
  • Comparing 1932 Hans Kinzl photograph of Glacier Broggi, Peruvian Andes, with glacier now nearly gone. Comparing 1932 Hans Kinzl photograph of Glacier Broggi, Peruvian Andes, with glacier now nearly gone.
  • Athabasca Glacier, Jasper National Park, Alberta, Canada, 2004, in retreat from 1917 terminus near today's highway. Athabasca Glacier, Jasper National Park, Alberta, Canada, September 2005, in retreat from 1917 terminus near today's highway.
  • Glacier recession, Athabasca Glacier, Canada, 1917 to 2005 Glacier recession, Athabasca Glacier, Canada, 1917 to 2005
  • Site of Pasterze glacier in 1875, rephotographed August 2004. Archival image courtesy H. Slupetzky. Site of Pasterze glacier in 1875, rephotographed August 2004. Archival image courtesy H. Slupetzky.
  • Qori Kalis glacier below Quelccaya Ice Cap, Peru. 1978 and 2011 images by glaciologist Lonnie Thompson. Qori Kalis glacier below Quelccaya Ice Cap, Peru. 1978 and 2011 images by glaciologist Lonnie Thompson.
  • Mount Hood, Oregon, Cascades Range, end of summer glacier, snowpack changes. Mount Hood, Oregon, Cascades Range, end of summer glacier, snowpack changes.
  • Mt Hood, Oregon, Sept 11, 2013, view of shrinking glaciers. Mt Hood, Oregon, Sept 11, 2013, view of shrinking glaciers.
  • Portage glacier near Anchorage Alaska seen in 1914 USGS photo and in 2004. Glacier no longer visible from visitor center. Portage glacier near Anchorage Alaska seen in 1914 USGS photo and in 2004. Glacier no longer visible from visitor center.
  • Alaska Portage Lake with only tiny part of glacier showing beyond a single iceberg. View from road to Whittier. Alaska Portage Lake with only tiny part of glacier showing beyond a single iceberg. View from road to Whittier.
  • Glacier National Park losing its namesakes at rapid pace: Grinnell Glacier in 1911 and 2009. Glacier National Park losing its namesakes at rapid pace: Grinnell Glacier in 1911 and 2009.
  • Mendenhall Glacier, tourist attraction near Juneau, Alaska, in 1894 and 2008. Mendenhall Glacier, tourist attraction near Juneau, Alaska, in 1894 and 2008.
  • Rhone Glacier, Switzerland, used to fill the valley, now barely visible high above. Etching from photo, 1859; 2001. Rhone Glacier, Switzerland, used to fill the valley, now barely visible high above. Etching from photo, 1859; 2001.
  • Kangerdlugssuaq Glacier front rapidly flowing and thinning outlet glacier from Greenland icecap. From NASA P-3 aircraft, 1000 ft. See Arctic, Alaska. Kangerdlugssuaq Glacier front rapidly flowing and thinning outlet glacier from Greenland icecap. From NASA P-3 aircraft, 1000 ft. See Arctic, Alaska.
  • Greenland overflight by NASA Orion P-3 measuring glaciers: Side streams of Kangerdlugssuaq Glacier one of fastest moving. Greenland overflight by NASA Orion P-3 measuring glaciers: Side streams of Kangerdlugssuaq Glacier one of fastest moving.
  • Kangerdlugssuaq Glacier front rapidly flowing and thinning outlet glacier from Greenland icecap. From NASA P-3 aircraft, 1000 ft. See Arctic, Alaska. Kangerdlugssuaq Glacier front rapidly flowing and thinning outlet glacier from Greenland icecap. From NASA P-3 aircraft, 1000 ft. See Arctic, Alaska.
  • Terminus, calving zone, of Jacobshavn Glacier, West Greenland, one of the world's fastest moving glaciers. From NASA glacier survery aircraft. Terminus, calving zone, of Jacobshavn Glacier, West Greenland, one of the world's fastest moving glaciers. From NASA glacier survery aircraft.
  • Glacier on east coast of Greenland, entering Fenris Bay, with evidence from trim line and crevasses of thinning and increased speed. Glacier on east coast of Greenland, entering Fenris Bay, with evidence from trim line and crevasses of thinning and increased speed.
  • Bubbles of air from which past air conditions can be estimated, seen in this slice of a glacier core at Byrd Polar Lab. See Science - Labs. Bubbles of air from which past air conditions can be estimated, seen in this slice of a glacier core at Byrd Polar Lab. See Science - Labs.
  • View of Breithorn (4165 m, center) and Matterhorn (4478 m, right) from Gornergrat near Zermat, Switzerland, showing receding glaciers feeding into the Gornergletscher below, August 2014. View of Breithorn (4165 m, center) and Matterhorn (4478 m, right) from Gornergrat near Zermat, Switzerland, showing receding glaciers feeding into the Gornergletscher below, August 2014.
  • Portage Glacier Portage Glacier from Bear Pass near Anchorage Alaska. 1910-15 by P.S. Hunt #84-75-486. 1950s by Lulu Fairbanks, University of Alaska Library. 2001 and 2012 by Gary Braasch
  • Pasterze Glacier Pasterze Glacier, longest in Austria, from end of road, Hohe Tauern Natl Park August 2004 and August 2014. Recent measurements show receding at a rate of more than 60 feet (18 m) per year.