Watch the full episode here: youtu.be/rdt85jgRHt0 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. Questions or concerns? Contact us at underknown.com/contact Interested in sponsoring our episodes or collaborating? Email us: inquiries@underknown.com Get our 100 best episodes in one mind-blowing book: bit.ly/ytc-the-what-if-100-book Join this channel to get access to perks: youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join Get a Cameo by Peter: cameo.com/whatifguy Check out our other channels: How to Survive: bit.ly/how-to-survive-show Aperture: bit.ly/aperture-show Your Body On: bit.ly/your-body-on-show Watch what-if scenarios by topic: Planet Earth: bit.ly/YT-what-if-Earth The Cosmos: http:/...