What I Learned While Shooting a National Geographic Documentary

Standing on top of the desolate mountain, 4000 meters (13,000 feet) up on the Tibetan Plateau, our bodies were freezing and our batteries were dying but we needed to get the final shot for the documentary. Nearby, the thermometer read -20 degrees C (-4 degrees Fahrenheit), but the harsh wind chill made it feel much much lower.

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