NG Live!: The Power of Photography to Prove

Photographer James Balog, whose Extreme Ice Survey employs time-lapse cameras to document glaciers worldwide, has indisputable and visually stunning proof that ancient glaciers are disappearing at an alarming rate.

The National Geographic Live! series brings thought-provoking presentations by today’s leading explorers, scientists, photographers, and performing artists right to your YouTube feed. Each presentation is filmed in front of a live audience at National Geographic headquarters in Washington, D.C. New clips air every Monday.