The glaciers of Nanga Parbat—one of the highest mountains in the world—have been shrinking slightly but continually since the 1930s. This loss in surface area is evidenced by a long-term study conducted by researchers from the South Asia Institute of Heidelberg University. The geographers combined historical photographs, surveys, and topographical maps with current data, which allowed them to show glacial changes for this massif in the north-western Himalaya as far back as the mid-1800s.
Click here for original story, Long-term Himalayan glacier study: Geographers combine historical images and maps with current data
Source: Phys.org