Episode 3 • 2020 • episode "S1E3" • Fight For Planet A: Our Climate Challenge

55:01

See how Tokyo is looking for new ways to fight back against rising waters. Typhoons, tsunamis, earthquakes and sinking neighborhoods threaten one of the world’s most populous cities, and the economic engine of Japan, with some of the world’s largest problems.

S1E2 • Sinking Cities • 2018 • Environment

53:16

All over the world, scientists are discovering traces of ancient floods on a scale that dwarfs even the most severe flood disasters of recent times. What triggered these cataclysmic floods, and could they strike again? In the Channeled Scablands of Washington State, the level prairie gives way to bizarre, gargantuan rock formations: house-sized boulders seemingly dropped from the sky, a cliff carved by a waterfall twice the height of Niagara, and potholes large enough to swallow cars. Like forensic detectives at a crime scene, geologists study these strange features and reconstruct catastrophic Ice Age floods more powerful than all the world’s top ten rivers combined. NOVA follows their efforts to uncover the geologic fingerprints of other colossal megafloods in Iceland and, improbably, on the seabed of the English Channel. There, another deluge smashed through a land bridge connecting Britain and France hundreds of thousands of years ago and turned Britain into an island for the first time. These great disasters ripped through terrain and transformed continents in a matter of hours—and similar forces reawakened by climate change are posing an active threat to mountain communities throughout the world today.

NOVA PBS • 2017 • Environment

52:53

Between the blue sky above and the infinite blackness beyond lies a frontier that scientists have only just begun to investigate. In "At the Edge of Space," NOVA takes viewers on a spectacular exploration of the Earth-space boundary that's home to some of nature's most puzzling and alluring phenomena: the shimmering aurora, streaking meteors, and fleeting flashes that shoot upwards from thunderclouds, known as sprites.

Environment

41:53

A supermassive black hole is moving toward Earth at almost the speed of light. As it approaches our planet, its enormous gravitational forces triggers natural disasters larger than any the world has seen.

S1E2 • Doomsday: 10 Ways the World Will End • 2016 • Environment

32:38

At Göbekli Tepe, the oldest known megalith in the world, Graham questions if simple hunter-gatherers alone could have built such an advanced structure.

S1E5 • Ancient Apocalypse • 2022 • Environment

44:24

The unique geological conditions that make Krakatoa and its successor, Anak Krakatau, extraordinarily explosive and, despite its remoteness, dangerous are explained.

S1E3 • How the Earth Was Made • 2009 • Environment