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An moving lecture. His description of his fingers being the size of sausages after doing five minutes in freezing water and the water inside your body freezing and expanding… well.

Swimming at the Top of the World
Trent Gilliss, online editor

A thoroughly inspiring lecture from a man who has been called the human polar bear. Lewis Gordon Pugh has swum in unimaginable places, including long-distance swims in all five oceans, in order to call attention to climate change.

Here, he talks about his most recent feat: swimming one kilometer (nearly 20 minutes) in minus 1.8 degrees Celsius water at the North Pole in order to raise awareness of the melting polar ice cap and rising water levels. For every one hour he spent training in cold water, he spent four hours in “mind training” — visualizing himself at every phase of the swim and willing his brain to raise his core body temperature.

If you only have a few minutes and can’t watch all 19, I recommend dropping in at the 10:25 mark to watch a short film about his journey. It’s quite moving.

(via Mashable)

(reblogged from my post on SOF Observed)

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