Frozen Memory: Portraits of Vanishing Glaciers [Slide Show]
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COLUMBIA GLACIER. ALASKA, U.S. July 23, 2006. In the mid-1980s ice filled this valley up to the lower edge of the dark band of vegetation. James Balog
MOUNT KILIMANJARO. TANZANIA. July 27, 2005. A fast-melting face of the Furtwängler Glacier near the summit. James Balog
SOUTH LAKE, GREENLAND ICE SHEET. GREENLAND. July 20, 2006. James Balog
STEIN GLACIER. SWITZERLAND. September 25, 2006. James Balog
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STEIN GLACIER. SWITZERLAND. September 17, 2011. James Balog
TAHUMMING GLACIER. BRITISH COLUMBIA, CANADA. August 29th 2009. The glacier has recently retreated from this cliff. James Balog
GREENLAND ICE SHEET. GREENLAND. June 7, 2010. Crevasses filled with meltwater. James Balog
NORTHERN NORTH LAKE. Greenland Ice Sheet, Greenland. July 18,2008. Lake bed, bare after the lake has drained, shows a moulin (cavity) that swallowed millions of gallons of water. James Balog
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GREENLAND ICE SHEET. GREENLAND. July 14, 2008. Bubbles of air, possibly 15,000 years old, are released as the ice sheet melts. James Balog
GREENLAND ICE SHEET. GREENLAND. July 10, 2008. Silt and soot blown from afar turn into black "cryoconite," absorb solar heat, and melt down into ice. James Balog
In 2007 photojournalist James Balog, who shot the image featured in the magazine's August photo spread ("Lakes on Ice," by Sid Perkins), gathered a team of scientists, photographers and filmmakers to launch the Extreme Ice Survey. The project, one of the most ambitious photographic glacial surveys ever undertaken, documents changes in the ice formations using dozens of time-lapse cameras placed at 18 sites around the world, including Greenland, Iceland and the Nepalese Himalayas. The photos in this slide show come from the forthcoming book Ice: Portraits of Vanishing Glaciers (Rizzoli, September 2012), by Balog and the Extreme Ice Survey team.
![Frozen Memory: Portraits of Vanishing Glaciers [Slide Show]](https://static.scientificamerican.com/sciam/cache/file/6B6B23A0-6D64-4C53-BB6059A68A59060D.jpg?w=590&h=393)
