Ancient Earth May Have Had Red Oceans
Season 50
Episode 11
About the Episode
How did oxygen escape from the oceans to form Earth’s atmosphere and create breathable air? Rust played a critical role in the process.
Aired:
| Expires: | Runtime: 3m 34s
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Extras
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Solar System: Storm Worlds Preview
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.0:30 -
What Happened to the Hole in the Ozone Layer?
In the 1980s scientists discovered a crucial part of the Earth’s atmosphere was extremely thin.3:13 -
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Legacy of the Land
Native American communities share their culture and knowledge to address climate change. -
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Megadroughts and Indigenous Voices
The Southwest is in a megadrought, but Native Americans have survived them before.7:51 -
Standing the Heat
Reintroducing the hogan, an earthen Navajo structure that stays cool in the summers without AC.8:44 -
Tides of Tradition
Following a local Unangax̂ hunter, hear the realities of food access in the changing Arctic.9:47 -
Keepers of the Coastline
In Northern California, Marine science is guided by Tolowa Dee-ni' Nation’s community and culture.11:56
