Glacial fed alpine stream in Glacier National Park.

Scientists sample for alpine insects in streams like this near Blackfoot Glacier in Glacier National Park. Alpine streams environments in the northern Rocky Mountains are especially vulnerable to climate change due to rapid warming resulting in loss of glaciers and snowpack. Glacier National Park is iconic of the combined impacts of climate change and snow and ice loss – over 80 percent of the park’s glaciers have been lost since the mid-19th century.