Imagine taking a helicopter over a fjord, across crevassed glacial surfaces, on top of the wildest country you could imagine — one of the most untouched areas in the world. The chopper lands, you jump out, throw your equipment on the ground, watch the pilot take off. You’re on top of the mountain, in the middle of the wilderness. It is silent. This is what Doug Benn, professor of environmental change, and his colleague Heïdi Sevestre do every day in their role as glaciologists.