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Imagine if all the Earth’s oxygen disappeared. Not forever, just for say, 5 seconds? Would we just hold our breath? What would happen to the atmosphere? What would happen to the environment? Here’s what would happen if the world lost oxygen for just 5 seconds. With your support we can make our show better! Join our Patreon community: Transcript and sources: Watch more what-if scenarios: Planet Earth: The Cosmos: Technology: Your Body: Humanity: About What If: Produced by Underknown in Toronto, Canada, What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different. Follow what-if on Instagram for bonus material: Suggest an episode: Follow the show on Facebook Watch: “Imagination will often carry us to worlds that never were. But without it, we go nowhere.“ — Carl Sagan Feedback, inquiries and suggestions:
