Record Mountain Climber Bob Edwards talks with high-altitude climber Ed Viestrus about his attempt to become the first American to conquer all fourteen of the world's tallest mountains without the aid of bottled oxygen. Viestrus, who has a larger lung capacity than the average human, is considered a natural-born climber. He's currently scaling his thirteenth mountain, Annapurna in Nepal.
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Record Mountain Climber

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Record Mountain Climber

Record Mountain Climber

Record Mountain Climber

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Bob Edwards talks with high-altitude climber Ed Viestrus about his attempt to become the first American to conquer all fourteen of the world's tallest mountains without the aid of bottled oxygen. Viestrus, who has a larger lung capacity than the average human, is considered a natural-born climber. He's currently scaling his thirteenth mountain, Annapurna in Nepal.