National Ice Core Lab

I and the other Ted Scripps Fellows went on a tour of the U.S. National Ice Core Laboratory in Denver. The NICL holds 13,000 meters of ice, the largest and most comprehensive collection of polar ice cores in the world. Our guide was Dr. Todd Hinkley and this audio is the speech he gave before leading us into the freezer where the ice is stored. There is a humming sound in the background from the freezer but his voice is audible. The temperature in the freezer was -30 degrees Fahrenheit. I didn't dare take my digital recorder in the freezer but I brought in my camera and snapped these photo.