James Balog’s Big Chill

From PDN:

Beginning in December 2006, Balog and a group of scientists, photographers and cinematographers positioned a total of 27 Nikon D-200 cameras at 18 locations in Greenland, Iceland, Alaska, the Rocky Mountains and British Columbia. Carefully boxed and sealed to withstand the elements, the cameras are powered by a combination of solar panels, batteries and other forms of electronics and are programmed to photograph once an hour as long as there is available daylight.

Check it out here.