This article discusses the impact that the warming earth is having on glaciers, and the resultant impact on people who rely on them for water. It references 4 studies:
Modeling Study of 56 glacier drainage basins worldwide;
Decline in snow water resources across High Mountain Asia;
The catastrophic collapse of two glaciers in western Tibet; and,
A groundbreaking 2016 paper, which conducted a large-scale analysis of shrinking mountain glaciers around the globe.