The Trift Lake in the making: In the 1990s, the first cracks began to appear in the mighty tongue of the Trift Glacier in the canton of Bern, Switzerland.
In 2002, the peak of the ice mass burst into thousands of pieces.
Since it lay in a hollow, the water swelled into a lake rather than flowing out.
"Many more people come to the glacier than before," says Wilfried Haeberli of Zürich University.
Lower Steinsee and Stein Glacier: The lake, which formed in the 1990s, is up to 17 meters (56 feet) deep.
Palüsee in Graubünden: In the 1990s, the glacier receded back behind the rock face, leaving a detached ice tongue behind it in the valley. In summer 2010, there were a few icebergs left -- they stick out of the new lake.
The Grindelwald Glacier's new lake: Huge masses of rock from the Eiger mountain that were once covered in ice began falling away in 2005, and the resulting landslides have been causing melt water to build up.
The lake at the Grindelwald Glacier: Rock avalanches dam up the melt water, and the lake grows.
The Grindelwald Glacier: The ice tongue in the Bernese Alps melts down and swells into hollows.
The new lake at the Rhone Glacier: Icebergs drift on the waters in the Valais.
The Aletsch Glacier, the largest in the Alps, will melt down in coming years, exposing deep gorges where lakes can accumulate, researchers believe.
The Chüeboden glacier on the border of Ticino and Valais: In recent years, a small pond swelled into a large lake with a depth of almost 30 meters (98 feet).
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