Darkened by ash from wildfires, glaciers in the Canadian Rockies are melting even faster

As the helicopter turned toward Peyto Glacier, located in the Park Ranges of the Canadian Rockies, John Pomeroy and his team of scientists gasped.

Prof. Pomeroy, a distinguished professor and director of the Global Water Futures Observatories at the University of Saskatchewan, has studied the ice mass in Banff National Park since 2008, visiting several times a year to adjust weather stations and photograph changes.