Anchorage is one of the few North American cities that depend on a glacier for most of their drinking water. The Eklutna glacier also provides some of the city's electricity, through hydro power. So a team of researchers is working to answer a very important question: How long will the glacier's water supply last?
To get that answer, those researchers have to shovel a lot of snow. "It gets to be the consistency of really strong Styrofoam once you get down, maybe six or eight feet," glaciologist Louis Sass says as he flings pristine snow out of a growing hole in the glacier.