David Letterman went out on a serious note by interviewing James Balog,  producer of the acclaimed documentary “Chasing Ice”. It appears a testament to the incredible urgency of reversing the affects of carbon emissions on the Earth’s atmosphere. Balog and his staff have spent years filming receding glaciers through time – lapse photography. The recession of ice is fairly alarming! Click on the video to view on Vimeo. Check out the “Chasing Ice” trailer below the Letterman video!

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