NOVA

How Earth’s Climate Changed Over the Past 500 Million Years

Clip: Season 47 Episode 1 | 3m 25s | Video has closed captioning.

Over its history, Earth has fluctuated between two climate states: Icehouses, with ice caps at at least one of the poles, and Hothouses, when there is no ice at the poles.

Aired: 02/05/20

Rating: NR

Problems Playing Video? | Closed Captioning

Major funding for NOVA is provided by the David H. Koch Fund for Science, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by the NOVA Science …

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From the PBS science series NOVA, a biweekly podcast digging into the science behind the headlines. Alok Patel takes you behind the scenes with the people—scientists, engineers, technologists, mathematicians and more—working to understand our world.

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