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Data from the World Glacier Monitoring Service, Zurich, Switzerland
Uploaded on Tuesday 21 Feb 2012
Glacier front variations in the European Alps
Hugo Ahlenius, UNEP/GRID-Arendal
Large Alpine glaciers have retreated continuously since the mid- 19th century, whereas steep mid-sized glaciers reacted with readvances in the 1890s, 1920s and between the 1970s and 1980s due to the somewhat cooler and wetter periods. Small glaciers feature a high annual variability with a clear shrinking trend.