James Dyson (1948) Shrinkage of Sperry and Grinnell Glaciers, Glacier National Park, Montana. Geographical Review 38(1): 95-103

A warming climate is melting the namesake glaciers of Glacier National Park, Montana, USA. James Dyson's 1948 paper was one of the earliest publications to emphasize climate change impacts to the cryosphere through an examination of Sperry and Grinnell Glaciers. This paper, combined with his subsequent works, acts as a pillar for current glacier monitoring efforts.