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        6-12

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        Part of NOVA
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        Trying to Breathe on Mount Everest

        At high altitudes, Earth's atmosphere is much thinner than it is at sea level. Mountain climbers trying to reach the highest peaks have to overcome a lack of oxygen. Mount Everest, the highest point in the world, seems to be at the limit of human capabilities. In this video segment adapted from NOVA, learn about how climbers ascending Mount Everest combat mountain sickness.

        Visit the program page here.

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