The Storbreen Glacier front was in retreat between 1750 and 1961. The retreat started long before the onset of carbon-dioxide-linked global warming. The Storbreen glacier is located in southern Norway, in the western part of Jotunheimen, a mountain area.
Source: Adapted from O. Liestol, Storbreen Glacier in Jotunheimen, Norway. Oslo: Norsk Polarinstitutt. 1967, pp. 1-63