Grasslands - Roots of Power - Human Planet - watch free online documentaries

Grasslands - Roots of Power • episode "S1E6" • Human Planet

A gallop across the Steppe with extraordinary 'born in the saddle' Mongolian horsemen.

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58:45

Oceans

Travelling from Hawaii to the Amazon and Ethiopia and then on to the Mediterranean, Iain tells the story of the oceans – fierce waves, huge tidal bores, global currents and the future dangers of global warming.

S1E4 • Earth: The Power of the Planet • Environment

65:30

Last Day of the Dinosaurs

Proposes a minute-by-minute chronology of the Chicxulub impact and its effect on the dinosaurs and other animals around the world.

2010 • Environment

52:41

Kilauea Hawaii on Fire

In May 2018, Kilauea volcano erupted, obliterating neighborhoods with devastating force and uprooting thousands of local residents. It is Hawaii's most destructive volcanic eruption in generations. How can one of the most beautiful places on Earth suddenly transform into a roaring inferno, sputtering molten lava and bombs of volcanic rock the size of refrigerators? On the ground in the early days of the eruption, NOVA joins scientists and residents alike on a breathtaking journey to investigate Kilauea's recent spike in activity. Along the way, some of Hawaii's biggest secrets are revealed: Why did these geologically distinctive volcanoes form in the middle of the Pacific? How did life establish itself on the remote islands? What does this tell us about the future of Hawaii? And what dangers yet lurk for the inhabitants of the island paradise?

NOVA PBS • 2019 • Environment