Playback: The Tree At the End of the World

For centuries, the Northwest Passage, the long-sought sea route connecting the Atlantic and Pacific Oceans through northern Canada, was a holy grail of Arctic exploration. Even now, sailing through it isn’t guaranteed. Mark Synnott, a National Geographic Explorer, writer, and adv ...  Show more

There’s a lost continent waiting to be explored, and it’s right below our feet. We’ll dig into the deep human relationship to the underground—and why we understand it from an instinctive point of view, but not so much from a physical one. (Hint: We’re afraid of the dark.) In an e ...  Show more

Dave Boyer heads to Brazil to explore the largest tropical rainforest on earth. It’s a place of breathtaking beauty and constant sensory stimulation. But here, just one step can lead to calamity. When Dave and his travel companion stray from the trail they realise that once you’r ...  Show more

Douglas Mawson and his companions Belgrave Ninnis and Xavier Mertz are losing precious time on their journey across uncharted territory in Antarctica. Severe storms have pinned them down for days, and they’ve had to backtrack to avoid hidden crevasses in the Antarctic ice, so dee ...  Show more

Three friends venture into the depths of Alaska. Tackling some of the most extreme weather on Earth, they’re attempting to reach North America’s highest peak. Nigel, Steve and Anthony are experienced and well-prepared. But a series of unexpected twists will plunge them into a gru ...  Show more

Chris Turney is an Earth scientist studying the causes and impacts of environmental and climate change with a focus on the Antarctic. Turney shares tales from his own ambitious expeditions to Antarctica and the greatest challenges Shackelton and his crew faced on the ice. Listen ...  Show more