A new time lapse vide footage shows the Columbia glacier in alaska diminishing fast in only four years.
James Balog is responsible for the footage, to be shown in a new documentary on climate change later this month.
Balog is the founder of Extreme Ice Survey, a photographic study of glaciers, most around the Arctic. The EIS team has 27 time lapse cameras in 15 places in Greenland, Iceland, Alaska and in the Rocky Mountains in Colorado, USA.
"Shrinking glaciers are the canary in the global coal mine. They are the most visible, tangible manifestations of climate change on the planet today," he told the Idaho Press.
Click here to see the video.