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Will Earth Run Out of Oxygen

Season 13 Episode 4 | 16m 53s

Plants eat sunlight and air to make life. But the key enzyme behind it all, called RuBisCO, isn’t actually all that great at its job. Let’s talk about how photosynthesis really works, why oxygen isn’t coming from where you think, and whether we can fix the biggest flaw in one of Earth’s most essential processes.

Aired: 04/23/25
Extras
Discover how two revolutionary ancient inventions changed the course of humanity forever.
Follow ancient humans’ journey into an icy and perilous new land.
The Xudum pride works together to bring down a huge buffalo, but things don't go according to plan.
Phil Sharp’s RNA breakthrough sparked a revolution in science, health, and biotech.
Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
Lediba shows off her incredible agility while hunting monkeys high above the ground in the treetops.
Elephants threaten the safety of lion mum Serami’s cubs.
Follow Homo sapiens as they venture out of Africa and spread farther than any other human species.
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Lediba and her cub face-off with male leopard Bongwe.
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