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4,000 feet of impossible.
Alex Honnold leads an expedition to Greenland to climb a huge 4,000 foot sea cliff and investigate the impacts climate change on the region.
National Geographic
Season 1
3 episodes
Alex Honnold
Self
Hazel Findlay
Mikey Schaefer
Aldo Kane
Sanni McCandless
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Floods - Challenging our Future
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Greta Thunberg: A Year to Change the World
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Wild Yellowstone
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Big Oil v the World
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Science for Future
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The Case Against Oil
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2009
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2007