How Climate Has Shifted Over Millions of Years

This short documentary examines how Earth's climate has shifted over the past thirty-four million years, using an unlikely record: a lake in the Russian Arctic. Scientists explain how sediments there preserve clues to the planet's long history of warming and cooling. In just a few minutes, it makes deep climate history clear and tangible. Concise and informative, it is a compact lesson in how our climate has changed. Free to watch in HD on Dr Documentary.

Courtesy of NOVA PBS on YouTube. Watch on YouTube ↗

Sponsored

More Nature & Wildlife Documentaries

A Journey Across Our Planet: Planet Earth II in 4K2024•1h 55m•4K•★8.8David Attenborough: A Life on Our Planet2020•6h 21m•HD•★8.8David Attenborough's Light on Earth2026•52m•4K•★8.6The Spider's Web: Britain's Second Empire2018•1h 18m•HD•★8.6World of the Wild | Episode 9: The Deserts | Free Documentary Nature2023•26m•HD•★7.9ELEPHANT KINGDOM | Survival Journey Among the Giants #naturedocumentaries | Wild Nature2025•1h 10m•HD•★7.8Mystery Mummies of New Guinea (Full Episode) | DOCUMENTARY SPECIAL | National Geographic2026•44m•4K•★7.7Tater Swift and the Ailing Alpaca (Full Episode) | The Incredible Dr. Pol2023•44m•4K•★7.7Megeti - Ethiopia's Lost Wolf | Free Documentary Nature2022•50m•4K•★7.7Wild Madagascar: Fantastic Creatures2025•44m•HD•★8.4Creatures Of The Deep: Coral Reefs and Marine Wildlife (4K Documentary)2024•52m•HD•★8.1Superfoods and the Environment - Avocados and Blueberries From South America2023•42m•HD•★8.0